Thursday

August 21, 2014

August 21, 2014

Number of results: 133

**Algebra**

Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. 3 5 ----, ---- 84a 63b 4b 6 -----, ---- 75a 105ab Can someone here help me I do not understand this at all need help! ...
*August 7, 2005 by Angel007*

**alebra 1**

y+1/y-1 - y-1/y+1 = 8/3 I know that I have to multiply by the LCD of the denominaters, but what is the LCD of y-1, y+1, and 3????? PLEASE HELP!! ~aShLeY
*February 15, 2010 by Ashley*

**LCD**

I need a reveiw on how to use the LCD least common denominator to add and subtract
*March 23, 2008 by ALi*

**Algebra LCD**

whats the lowest common denominator LCD with x^2-25 and x+5
*October 18, 2011 by Clark*

**algebra**

How do you find the LCD for these fractions 3/4c & 5/6ct also is the LCD for 4/15 & 1/9 (45)?
*December 11, 2011 by Linda*

**algebra**

Reduce to lowest terms 3x-6/x^2-4x+4 perform operation w^2-1/(w-1)2 times w-1/w^2+2w+1 Find LCD and convert rational express. to equivalent rat. exp. with LCD as the denominator: 4/a-6 , 5/6-a
*February 2, 2009 by allie*

**Math**

I can't figure out 6 - 2/3r = 1 1/2 The way we're learning how to solve it, is by using the LCD. the LCD I use is 6 The book says the answer is 6 3/4 But I keep getting the wrong answer.
*January 25, 2010 by Michelle*

**Help1**

WHY rational expressions that are being added must have an LCD, but rational expressions that are being multiplied do not need to have an LCD. The short answer is that addition and multiplication are different operations with different properties. If we added rational ...
*October 13, 2006 by Allen*

**Math - LCD**

What is the LCD for x^2,x, and x?
*September 27, 2012 by Matt*

**algebra**

Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. 4/x-y , 5/2y-2x
*July 13, 2009 by Joe*

**HELP PLZ**

1. Milo bought pounds of red apples and pounds of green apples to make applesauce. How many pounds of apples did he buy in all? a. Write an expression that models the problem. b. What is the LCD of the fractions in your expression? Explain how you found the LCD. c. Evaluate ...
*December 17, 2013 by mary ann*

**Math**

Please help me I am terrible at math, and this is my last class before graduation.. 1. Find the value of X... x/6-x/8=1 2. Find the value of X...x/x-2-x+1/x=8/x^2-2x 3. Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 4.Find the value of X...2/5=x-2/20 find the lowest common ...
*May 23, 2007 by Helpless*

**math**

find the lcd of this rational algebraic expression 4/x+2,2/2-x,3/4-x^2 another rational algebraic expression you will also find the lcd 5/y+5,3y/2y+10,2/y+10
*October 7, 2010 by jazmin*

**math-Statistics**

I have been working on the Type I error and a Type II error problem but now I can not figure out the Power of the test? A manufacturer of computer monitors receives shipments of LCD panels from a suppliers overseas. It is not cost effective to inspect each LCD panel for ...
*February 22, 2009 by Sherri*

**algebra 2**

x/x^3+y^3 , x/x+y The LCD is
*June 14, 2009 by Skinny Mini*

**math**

what is the lcd for 2/5 and 9/35
*August 15, 2012 by santy*

**Algebra**

LCD of x/x2+3x , 2x/x2-3x
*January 27, 2013 by Alyssa*

**math **

WHAT IS THE LCD OF 2, 29 AND 53 ?
*June 12, 2013 by ANGEL *

**math**

what is the lcd of 1/2 and 2/3
*January 20, 2014 by jesse*

**math,algebra,help**

can someone show me how to solve this: Simplify 3 --- + 1 x-5 ----------- 4 1 minus ---- x -5 that did n't look right...typo... here it is its a fraction on top of the other so the top is fine.the bottom should read one minus (4)/(x-5) Get least common denominator. For top ...
*March 13, 2007 by jasort20*

**math**

the LCD for the Fraction 1/3, 3/4, 5/32, and 8/9 is
*July 31, 2008 by harold*

**math **

find lcd of 1/3,5/12, 4/5 =37/60?
*September 11, 2009 by p*

**Algerbra 2**

1/X +1/x+3=1/2 I don't get LCD/distribution?
*June 1, 2010 by jen*

**algebra**

whats the lcd of 8/9x+2/3x=1/9x+45
*January 20, 2011 by hannah*

**math**

lcd of 1/125+62/50
*January 24, 2011 by kdk*

**math**

lcd 3/5x^3t, 8/125xt^3
*May 5, 2011 by lyssa*

**Algebra 1**

What is 2/7 - 1/4 + 9/14? What is the LCD? And how did you find it?
*September 5, 2012 by Dani.*

**Algebra**

lcd of x/14+11x/18=x/20
*September 8, 2013 by Anonymous*

**Phsyics**

Can you explain to me how an LCD works?
*May 1, 2010 by Emily*

**Fisher College**

What is 6y/7x^2 in terms of the LCD
*December 5, 2012 by Eden*

**math check**

23/17 < 5/3 Found LCD 69/51 85/51
*February 10, 2014 by Joe*

**math check**

23/17 < 5/3 Found LCD 69/51 85/51
*February 11, 2014 by Joe*

**Ict**

Full form LCD
*April 30, 2014 by Hr*

**Algebra 2**

Find the LCD of 5/18x^2y^3,-3/24x^4y^5
*February 23, 2010 by Gina*

**ALGEBRA**

help me solve 6/z+8 = 5/z-3? do i first find the lcd?
*March 10, 2010 by GGIFT*

**Math**

3/2y-3/2y+4 = rational expression reduce to lcd
*May 16, 2010 by Angelia*

**maths.**

find the lcd of each setof fractions: 1/2, 1/8, 1/16
*September 11, 2010 by craig*

**Mathhh, HELP!**

Find the LCD: a) (12/55c^6) (4/11c^9) b) (9/4c+12) (5c/5c+10) c) (9x/x^2-4x+4) (5x/x^2-5x+6) d) (7/x) (3/42-7x) (x/x^2-36)
*October 29, 2013 by Trevor*

**Consumer Math **

2. Express the fractions 1/2, 3/16, and 7/8 with an LCD. A. 1/4, 3/4, 7/4 B. 1/32, 3/32, 7/32 C. 4/8, 6/8, 14/8 D. 8/16, 3/16, 14/16 A
*January 27, 2014 by shawn*

**math,help**

can someone show me these steps with the division like 2 --- 1 which would mean half. the following though. so i can see it. Simplify 3 --- + 1 x-5 ----------- 1 - (4)/(x-5) Get least common denominator. For top part, the LCD is x-5. So the 1 becomes (x-5)/(x-5). Thus the top ...
*March 14, 2007 by jasort20*

**alg**

Find the LCD for the following rational expressions. (-3 / x^2 - 2x + 1) (2x / x^2 - 5x + 4) a)( x - 1) (x - 4) b)(x - 1)^3 (x - 4) c)(x - 1) (x + 4) d)(x - 1)^2 (x - 4)
*July 5, 2010 by sean*

**math**

The LCD for the fractions 1/3, 3/4, 5/32, and 8/9 is A. 24. B. 64. C. 288. D. 3072. can u show me how to do this
*May 26, 2009 by k*

**alg**

Find the LCD for the following rational expressions. -3 / x^2 - 2x + 1 2x / x^2 - 5x + 4 a)(x - 1) (x + 4) b)(x - 1)^2 (x - 4) c)(x - 1)^3 (x -4) d)( x - 1) (x - 4)
*July 3, 2010 by sean*

**algebra**

find the lcd o this rational algebraic expression 3x/x-4,2x/x+4
*October 7, 2010 by jazmin*

**math**

please get the lcd of this rational algebraic expression 3x+2,2x/x^2-4,x+1/x^2+5x+6
*October 7, 2010 by jazmin*

**Math**

What would the LCD be between x^2, 4x, and 6? Here is the problem: 1/x^2+3/4x-5/6
*December 2, 2012 by Mike*

**Math**

Use the LCD to write the equivalent fractions 1/3 and 1/4 7/8 and 2/3
*December 19, 2012 by Anonymous*

**math**

4 5/8 + 9 3/5 = need to show how I got answer I know that the Lcd is 40 and then it is 25/40 + 24/40= 49/40 and then I don't know what to do from there
*February 3, 2013 by Jared*

**math, facorinf **

Find the LCD 19/y6-12y5+36y4
*November 15, 2013 by Angela*

**algebra**

when adding or subtracting rational exprssions, why do you need an LCD
*March 21, 2010 by sid*

**algebra**

find the lcd of the rational expressions 1/35r, (r+3)/10r^2
*April 27, 2010 by jessica*

**Math**

When adding and subtracting rational expressions, why do you need a LCD?
*October 9, 2010 by maryk*

**Pre-Algebra**

USE THE LCD TO DETERMINE WHICH FRACTION IS GREATER. 1/4,2/7
*October 20, 2010 by Tray*

**Algebra LCD**

Lowest common denominator of denominators (3x^4)-27x^2 and (x^3)-3x^2
*October 18, 2011 by Clark*

**MATH (FRACTIONS)**

1/2+3/4....WRITE IN SIMPLIST FORM USE THE LCD
*November 5, 2011 by TYYYY*

**Math HELP URGENT!**

Find the LCD of the ration expressions: A) [9x/(x^2-z^2)] [3/(x^2-2xz+z^2)] B) [x/(x^2-64)] [2/(40-5x)] [7/x]
*October 31, 2013 by Uri*

**math**

I don't know what terms are suppose to be conbine with each other or find the lcd in this problem. (3b-2)/(b+1)=4-(b+2)/(b-1)
*April 29, 2008 by confuse*

**math**

Which symbol belongs between each pair of numbers? <,>, or = (a)11/23 and 33/65 (b)7/8 and 8/9 (c)-6/7 and -11/33 Hint (LCD)
*September 27, 2010 by Anonymous*

**Math**

Could anyone help me find the pattern for these fractions? I can't seem to figure it out. Thanks 2/3,3/4,4/5,5/6. The LCD for them is 60.
*August 24, 2011 by Shadow*

**math**

Find the least common denominator (LCD) for fractions with the given denominators. 1/3 + 5/12 + 4/5
*July 24, 2009 by scooby91320002*

**math**

Find the least common denominator (LCD) for fractions with the given denominators 13/15 - 11/20=2/5?
*September 11, 2009 by A*

**alg**

find the LCD for the following rational expressions. -3 / (x^2 - 2x) + 1 / 2x (x^2 - 5x + 4) a) ( x - 1) (x - 4) b) (x - 1)^3 (x - 40 c) (x - 1) (x + 4) d) (x - 1)^2 (x - 4) did i write it the correct way
*June 30, 2010 by sean*

**Math**

Solve for y x-2y/5=3(y+2)/4 +3 This is what I did and I don't know if it's right or what to do next. Find the Lcd which is 20. I get: 4x-8y=15y+30=60 I don't know what to do from here. I'm so confused.
*August 24, 2010 by Laura*

**Algebra**

*correction of previous post* Find the LCD of the rational expressions in the list. m-2/m^2+2m , -8/m^2+6m+8
*December 2, 2011 by kai*

**Subtracting fractions **

Can someone help me subtract factions I don't know how to borrow. 12 1/3 - 7 2/5 LCD=15 So, 1/3 • 5/5 & 7/5 • 3/3 = 5/15 - 21/15 And then I have no idea what to do
*September 21, 2013 by Lilly*

**Intermediate Algebra**

Am I going in the right track? 8x -1/x + 5x - 3/2x = 16x^2 - 2x/2x^2 + 5x^2 - 3x/2x^2 16x^2 - 2x + 5x^2 - 3x/2x^2 =21x^2 - 5/2x^2 Find the LCD 6/7z- 28, 8/x^2 -4x = 7x(x-4) Simplify 3x^2 - 2x/15x-10 = x/5 Let's start by looking at your first problem: 8x -1/x + 5x - 3/2x To ...
*November 3, 2006 by Richard*

**intermidiate alegbra**

converting to LCD 3/4b^-9, 2/2b+3, -5/2b^-3b that sign over the "b"represent 2 I have to work this problem so help me.
*May 16, 2010 by Keaton*

**pre-calculas**

find the LCD and solve: x+3 12x + 4 1 - 2x ____ + _________ = _______ 3-x x squared - 9 x + 3
*February 16, 2014 by Marina*

**math**

can you answer this as soon as possible please just find the lcd of this rational algebraic expression 3x/x-4,2x/x+4
*October 7, 2010 by jazmin*

**Extended mathematics**

In the diagram ,N lies on a side of the square ABCD,AM and LC are perpendicular to DN,prove that ADN=LCD.
*January 29, 2014 by FARHAN*

**math**

I need to find the sum of 2/5 and 3/4. The LCD is 20 so I did 2x4=8 and 3x5=15. so I got 8/20 + 15/20 = 23/20, but this does not match any of the answers I have to pick from. What am I doing wrong?
*December 9, 2012 by Dar*

**Math**

I need to find the sum of 1/6 and 1/2. I found the LCD to be 2 so I multiplied that by the numerator and got 2/2+2/2=4/2 and simplified that to 1/2. But the answers that I get to choose from are 1/3, 1/4, 2/3 and 3/4. What did I do wrong?
*December 10, 2012 by Dar*

**Physics**

I was just wondering, since cathode ray tubes arent being made, are the only types of TVs available the plasma and the LCD?
*December 2, 2007 by Meredith Mcneeds Help!*

**Math impatient now**

Subtract simplify if possible. 5-v/v-8 - 9v-7/8-v I can't do this no matter how I try i cannot figure out what the lcd is. I don't see where either denominator can be factored. WHat am I doing wrong?
*September 25, 2010 by Sabrina*

**ALGEBRA**

If you are subtracting fractions like 8-y over y-4 MINUS 7y-9 over 4-y... will the LCD be y-4? I'm stuck on this!!
*March 10, 2010 by GGIFT*

**Algebra**

Simplify by removing the factor of 1 y^2-7y+6/ y^2+8y-9 I need to LCD? y^2 Then I divide the denominator into the numerator? Then I simplify?
*January 22, 2008 by Marysvoice*

**Math**

Fred had 2 1/8 yards of pipe. He cuts 1 3/4 yards for a project. What is the LCD for the fractions in the problem?
*December 19, 2012 by Anonymous*

**ALGEBRA EXTREMELY NEED HELP**

HOW DO YOU SOLVE (2c/c-4)-2=(4/c+5). WHAT IS THE LCD. HOW DO YOU FIND IT BECAUSE I NEED TO KNOW
*April 17, 2008 by Katie*

**Alg 2 **

Find the lcd 14/4(x+1) , 7/4x I don't get it can you please explain step by step?
*February 7, 2012 by Yolie*

**college maths**

Find the LCD and add the fractions. 1/125 + 4/50= 11/24 1/1250 1/35 551/6250 (Points: 5) im not getting the concept of this some help is really needed please
*December 13, 2010 by lisa*

**algebra**

How to put this math problem in power point presentation. Evaluate both expressions by using R= 120 and s = 200 : Find the LCD of the terms in the equation.
*August 20, 2011 by faith*

**math**

how to find the LCD for 11x/yz^2, 8x/y^2z? I know the answer is yz^2 but how do you get that. can you plzz plzz explain..... this it is really important..... thnx ...... a lot..
*July 6, 2009 by gagan*

**MathLog#4**

How would you solve for 'a'? (1/a) - (1/b) = c would you use the LCD???
*April 2, 2012 by Serena*

**REPOST URGENT!! PLEASE ANSWER**

I was just wondering, since cathode ray tubes arent being made, are the only types of TVs available the plasma and the LCD?
*December 2, 2007 by Meredith Mcneeds Help!*

**algebra equation solving**

((y+2)/(y^2-49))subtract ((y)/(y^2+6y-7)) subtract and simplify ,,,,,i know i need to find LCD which is y+7,and multiply both sides to get it that way i think answer is -6y-2/y+7....is this right???
*January 11, 2012 by Rochelle*

**math**

find the lcd for 4 over 5 and 3 over 9
*April 22, 2009 by mia*

**math**

1. The product of 7/16, 4/3, and 1/2 is A. 7/12. (B). 7/24. C. 21/32. D. 2 13/48. 2. The total of 36, 78, 198, 475, and 620 is (A). 1,407. B. 2,109. C. 1,731. D. 1,187. 3. The quotient of 794.1 divided by 7.61, expressed to two decimal places, is A. 95.83. (B). 104.35. C. 786....
*October 15, 2013 by ash*

**math-rational equations**

how do I solve 5/x-3+3/x+3=7x/x^2-9 please explain in detail, I am having trouble once I get to the part where I need to simplify. I have so far the LCD is x^2-9 then the equation changes to (x^2-9) 5/x-3+(x^2-9) 3/x+3=(x^2-9) 7x/x^2-9 or (x+3)*5(x-3)*3=7x after this I'm stuck...
*July 1, 2009 by Kay*

**Math**

Convert these unlike fractions to equivalent like fractions and add them. You must use the LCD to get the answer correct. If possible, reduce the final sum. 1/7 = ?/? + 3/14 = ?/? __________ ? - ??
*March 16, 2011 by Angel*

**math**

find the lcd of this rational algebraic expression 3x+2,2x/x^2-4,x+1/x^2+5x+6 please answer it immidiately i need the answer as soon as possible ..please?
*October 7, 2010 by jazmin*

**Math - missing fraction**

Please advise how it is I go about finding the missing fraction. I get so confused. The problem is: N-3/5=1/4 I know the LCD would be 20 but from there, I am lost. Thank you.
*January 16, 2013 by Renee*

**Math**

Mel paid $569.27,including 6% tax! for LCD computer monitor. How much did the computer monitor itself cost?
*November 23, 2013 by Anonymous*

**pre-cal**

Solve (x+2)/(x+1) -2 < 0 I know the LCD is x + 1. (x+2-2x-2)/(x+1) < 0 (-x )/(x+1) < 0 But somehow, I got the wrong answer. The answer is (4, 7]. But I don't know where I went wrong.
*September 18, 2010 by Priscilla*

**ALGEBRA**

How do you solve the rational equation: (n/n-2)+(n/n+2)=(n/n^2-4) I know that the LCD of the equation is (n+2)(n-2) because that is what you get when you factor out the n^2-4 in the last part of the question. I thought I did it right until I reached the end where I don't know ...
*April 15, 2008 by Katie*

**math**

Peform each indicated operation by using LCD and simplify the result. Can you please show me the steps on how you got the answer because I don't understand how to these problems. Thank you. y+2 over y^2+2y+4 + 1 over y-2 z-3 over z^2+z-6 + 2z+1 over z-2
*April 28, 2010 by Bradley*

**ALGEBRA**

to solve the following: 4-s over 7-s = 3 over s-7... LCD is s-7 then (s-7)(4-s over 7-s) = (s-7) (3 over s-7)? am I on the right track???
*March 10, 2010 by GGIFT*

**Trigonometry**

Can you explain what is the answer if I encounter(sinθ – 1)? Can you also teach me how to get the LCD of cos^2θ and cos^3θ? Thanks.
*March 1, 2014 by Ashley Kate*

**Math problem still stuck**

Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.) -161/8 b.) 120/7 c.) ...
*October 12, 2008 by Shawn*

**math please help!!!!!!!!!**

Express the fractions 1/2, 3/16, and 7/8 with an LCD. A. 1/4, 3/4, 7/4 B. 1/32, 3/32, 7/32 C. 4/8, 6/8, 14/8 D. 8/16, 3/16, 14/16 I think its b, but im really bad at math. can someone please help me out? I have to finish this by 12:15 so I can be on time to volunteer at the ...
*September 25, 2013 by corie*

**algebra 2**

Find the LCD for the following pairs of rational expressions. numerator 8 divided by denominator x negative 13 and numerator 7 divided by denominator x plus 15
*October 29, 2009 by SaRa*