# LCD

163 results

Math
Is the LCD of x/2x-4 and 5x/12x-24 not 24(x-2)? The original question is x/2x-4 + 5x/12x-24 and I factored the denominators first so that I could find the LCD. And I got: x/2(x-2) + 5x/12(x-2) After that, I multiplied up to the LCD and got: x/2(x-2) + 5x/12(x-2) = x/2(x-2)*(12...

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! ...

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

LCD
I need a reveiw on how to use the LCD least common denominator to add and subtract

Algebra LCD
whats the lowest common denominator LCD with x^2-25 and x+5

algebra
How do you find the LCD for these fractions 3/4c & 5/6ct also is the LCD for 4/15 & 1/9 (45)?

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

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.

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 ...

Math - LCD
What is the LCD for x^2,x, and x?

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

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 ...

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 ...

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

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 ...

Algebra
I'm studying for a test so I want to make sure I'm doing these problems right. Numerator (-5a exponent -2) Denominator b3 All to the -1 exponent For a= -4. And b=2 My answer I get is 1/10 is the right ? -16 with -1/2 exponent Would the answer be -4? 2-3 square root of 14 Would...

algebra 2
x/x^3+y^3 , x/x+y The LCD is

math
what is the lcd for 2/5 and 9/35

Algebra
LCD of x/x2+3x , 2x/x2-3x

math
WHAT IS THE LCD OF 2, 29 AND 53 ?

math
what is the lcd of 1/2 and 2/3

Math
LCD 3/4 1/8 7/16 3/32

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 ...

math
the LCD for the Fraction 1/3, 3/4, 5/32, and 8/9 is

math
find lcd of 1/3,5/12, 4/5 =37/60?

Algerbra 2
1/X +1/x+3=1/2 I don't get LCD/distribution?

algebra
whats the lcd of 8/9x+2/3x=1/9x+45

math
lcd of 1/125+62/50

math
lcd 3/5x^3t, 8/125xt^3

Algebra 1
What is 2/7 - 1/4 + 9/14? What is the LCD? And how did you find it?

Algebra
lcd of x/14+11x/18=x/20

Math
The LCD for the fractions 1/3, 3/4, 5/32, and 8/9 is

MATH
find the LCD of -3/4x , 5/x , 7/x^2

Phsyics
Can you explain to me how an LCD works?

Fisher College
What is 6y/7x^2 in terms of the LCD

math check
23/17 < 5/3 Found LCD 69/51 85/51

math check
23/17 < 5/3 Found LCD 69/51 85/51

Ict
Full form LCD

algebra2

math
write the LCD for each pair4/7, 1/8, 11/12

Math
Find the LCD of 3/5 and 1/6. 5 6 11 30 I believe it is 30

Algebra 2
Find the LCD of 5/18x^2y^3,-3/24x^4y^5

ALGEBRA
help me solve 6/z+8 = 5/z-3? do i first find the lcd?

Math
3/2y-3/2y+4 = rational expression reduce to lcd

maths.
find the lcd of each setof fractions: 1/2, 1/8, 1/16

Math, 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)

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

Math
Find the LCD of 3/5 and 1/6. A. 5 B. 6 C. 11 D. 30 I choose D am I right? Thanks

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 ...

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)

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

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)

algebra
find the lcd o this rational algebraic expression 3x/x-4,2x/x+4

math
please get the lcd of this rational algebraic expression 3x+2,2x/x^2-4,x+1/x^2+5x+6

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

Math
Use the LCD to write the equivalent fractions 1/3 and 1/4 7/8 and 2/3

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

math, facorinf
Find the LCD 19/y6-12y5+36y4

algebra
7/20x^3y^5,1/30 x^6y^4 find lcd do not combine fractions

Calculus algebra review
((1/2+h) -(1/2)) / h found LCD of numerator ((2)-(2+h)/2(2+h))/h is it 1

Math
LCD 1.1/2 4/x^2 <<1/2 or 2 2.1/z;3/7z << HELP 3. 3/5;x/x+2 << Help 4. 3m/m+n; 3n/m-n<< Help I need help or equations on how to solve this please

Math
LCD 1.1/2 4/x^2 <<1/2 or 2 2.1/z;3/7z << HELP 3. 3/5;x/x+2 << Help 4. 3m/m+n; 3n/m-n<< Help I need help or equations on how to solve this please

algebra
when adding or subtracting rational exprssions, why do you need an LCD

algebra
find the lcd of the rational expressions 1/35r, (r+3)/10r^2

Math
When adding and subtracting rational expressions, why do you need a LCD?

Pre-Algebra
USE THE LCD TO DETERMINE WHICH FRACTION IS GREATER. 1/4,2/7

Algebra LCD
Lowest common denominator of denominators (3x^4)-27x^2 and (x^3)-3x^2

MATH (FRACTIONS)
1/2+3/4....WRITE IN SIMPLIST FORM USE THE LCD

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]

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)

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)

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.

algebra
t/2 + t+3/3t = 1/t I got the lcd of 12t I stuck at the step of solving and i'm not getting t=-4

MATH
Find the LCD them make in into similar: -3y 4y^2 ____ , _____ x-1 x^2-1

math
Find the least common denominator (LCD) for fractions with the given denominators. 1/3 + 5/12 + 4/5

math
Find the least common denominator (LCD) for fractions with the given denominators 13/15 - 11/20=2/5?

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

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.

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

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

Math - Very urgent.
Use multiples to find the LCD for each pair of fractions. a) 1/2, 1/3 b) 1/4, 1/5

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 ...

intermidiate algebra
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.

pre-calculas
find the LCD and solve: x+3 12x + 4 1 - 2x ____ + _________ = _______ 3-x x squared - 9 x + 3

Math - Very urgent.
Use prime factors to find the LCD for each pair of fractions. a) 1/4, 1/8 b)1/6, 1/18

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

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.

Algebra
-2/5x - 9 < 9/10 I think I should make everything a fraction and down to the LCD. Then complete the inequality that way?

Math - Urgent
I'm sorry I need 1 more question to be asked. Use the LCD to write equivalent fractions. 5/6 , 2/9

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?

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?

Physics
I was just wondering, since cathode ray tubes arent being made, are the only types of TVs available the plasma and the LCD?

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?

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!!

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?

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?

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

Alg 2
Find the lcd 14/4(x+1) , 7/4x I don't get it can you please explain step by step?

Algebra I
**Match each word or phrase w/ its definition** Word Bank: A) least common multiple (LCM) B) repeating decimal C) reciprocals D) dimensional analysis E) terminating decimal F) least common denominator (LCD) G) multiple ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN QUESTIONS W...

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

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