Number of results: 442
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! ...
Sunday, August 7, 2005 at 1:15pm by Angel007
what is the least common denominator? It is the smallest number into which all of the denominators in a series of fractions can be evenly divided. For instance, is you have fractions 1/2, 2/3 and 5/6, the denominators are 2, 3 and 6, and the least common denominator is 6. The ...
Tuesday, August 1, 2006 at 1:47am by megan
maths linear eqautions
i have a number of sweets in a bag. if i removed three of them and divided the number remaining by 4, i would have two fewer than if i removed 7 and divided the number remaining by 3. How many sweets do i have (N-3)/4 = (N-7)/3 +2 check my thinking. I see annonymous simply ...
Thursday, September 14, 2006 at 5:14am by fussiilat
1/3x + 5/6 = 2/9x - 1/3 How do I solve this to get the answer? For basic algebra you need to understand that we can add (or subtract) the same quantity from both sides without affecting the = sign. We can also multiply and divide (except by 0) both sides without affecting the...
Thursday, September 14, 2006 at 8:00pm by Courtney
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 ...
Friday, October 13, 2006 at 1:33pm by Allen
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 ...
Friday, November 3, 2006 at 1:26pm by Richard
4/5-2/3=? Find the least common denominator of 5 and 3 so that you can convert the two fractions to fractions that have the same denominator, then you can subtract them. Repost if you still have trouble. http://www.math.com/homeworkhelp/HotSubjects_fractions.html =) The LCD of...
Wednesday, January 3, 2007 at 4:42pm by cassie
If a and b are positive integers, prove that: ab = gcd(a,b)*lcm(a,b). Can visualize this being true and easily create examples just dont know how to prove algebraically. well the gcd of any two number can be found by multiplying the two numbers together and the lcm of all ...
Thursday, March 8, 2007 at 1:23pm by Rom
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 ...
Tuesday, March 13, 2007 at 10:01pm by jasort20
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 ...
Wednesday, March 14, 2007 at 2:55am by jasort20
i am having trouble on solving fractional equations such as: 2 3 7 ______ + _____ = ______________ x+3 x+4 x^2 +7x+12 factor the right side denominator, then look for what factors make up a common denominator. For each fraction, multiply the numerator and denominator with the ...
Saturday, March 17, 2007 at 6:17pm by Katherine
Finding Common Demoninators in fractions. 1) 2 4 -- - --- x^2-16 x^2+x-12 2) x-3 x+3 ---- + ------ x^2+2x-8 x^2+7x+12 Can ANYONE help me with these. I cant figure out how to get the DEMONINATORS THE SAME!? Use brackets to write these kind of fractions, the text editor of this ...
Sunday, April 1, 2007 at 5:37pm by megan
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 ...
Wednesday, May 23, 2007 at 9:04am by Helpless
I need the similarities and differences in each of the following: 1. educational technology instructional technology audio visual technology 2. educational media instructional media audio visual media 3. educational aids instructional aids audio visual aids Hope you can help ...
Tuesday, July 3, 2007 at 11:49am by klar maesen
subtract. express in simplest form 13x/30 - 4x/ 15 = factor the first denominator. Get a common denominator. Combine terms. I will be happy to critique your work. ok 13x/30 - 4x/ 15 = This is where I get lost, I know that I have to fins the LCD but when I do that it looks like...
Sunday, July 15, 2007 at 1:29pm by Diana
I need a reveiw on how to use the LCD least common denominator to add and subtract
Sunday, March 23, 2008 at 4:34pm by ALi
whats the lowest common denominator LCD with x^2-25 and x+5
Tuesday, October 18, 2011 at 4:05am by Clark
oops. In that case, then (x^2-25) would be the LCD.
Tuesday, October 18, 2011 at 4:05am by Steve
First, fully factor both. (3x^4)-27x^2 = 3x^2(x^2 - 9) = 3x^2*(x+3)(x-3) (x^3)-3x^2 = x^2(x-3) The LCD is 3x^2*(x-3)(x+3). It is the product of all factors appearing in both expressions. Factors that appear in both only appear once in the LCD.
Tuesday, October 18, 2011 at 4:13am by drwls
Math - LCD
What is the LCD for x^2,x, and x?
Thursday, September 27, 2012 at 2:18pm by Matt