Number of results: 308
Find the LCM of 11(s-3) and 33(s-3). LCM of 11 is 11*1 LCM of 33 is 3*11 LCM is 11*3*1=33 What do I do from here? I put down 33(s-3) was the answer but I don't think that is right. Thanks for your help.
May 16, 2010 by B.B.
Can someone check my answers for me pls? True or False LCM of 10 and 18 is 180; False LCM of 8 and 30 is 120; True LCM of 3 and 4 is 12; True LCM of 42 and 28 is 168; True LCM of 9 and 15 is 45; True
December 5, 2008 by Jaden
I am stumped by these two LCM questions for some reason. Find The LCM for #1 2(R-7) and 14(R-7) #2 (1+4r), (1-16r^2), and (1-4r) It seems like #1 is already at the LCM and #2 would be (1+4r)(1-4r) Am I even vaguely correct? Thanks for your help.
August 2, 2011 by Aria
I still do not understand Today was my first day learning how to add 3 sets of fractions with different denominators and I did not get it. I need help with the following please. 1/8 + 1/2 + 3/4 = Waht is the LCM? Answer 8. So convert all the other denominators to eights. 1/8...
March 21, 2007 by Andre
Can someone check this for me : Find the gcf for each of hte following groups of numbers: 36,64, and 180 My answer: gcf=4 Find the lcm for each of the following groups of numbers which ever method you wish:8,15, and 20 My answer: Lcm=1 Find two factors of 15 with a difference ...
December 4, 2006 by jasmine20
When finidng the lest common multiply why how do you know which way to list the factoring so that you get the LCM 12=2*2*3 16=2*2*2 I say 2*2*2*3=24 LCM should be 48 What am I doing worng?
February 11, 2008 by Will
I have the answer and would love confirmation. VERY APPRECIATED! Find the LCM OF (1+2t), (1-4t^2), and (1-2t). 1-4t^2=(1+2t)(1-2t) 1+2t = 1+2t 1-4t^2= (1+2t)(1-2t) 1-2t = 1 - 2t. The LCM for all numbers is 1-4t^2 = (1+2t)(1-2t) Thank you
January 26, 2011 by AMY
have the answer and would love confirmation. VERY APPRECIATED! Find the LCM OF (1+2t), (1-4t^2), and (1-2t). 1-4t^2=(1+2t)(1-2t) 1+2t = 1+2t 1-4t^2= (1+2t)(1-2t) 1-2t = 1 - 2t. The LCM for all numbers is 1-4t^2 = (1+2t)(1-2t) Thank you
January 26, 2011 by AMY
I don not understand how to do least common mutiples. Can I please get some help. I need to find the least common multiple of 420 and 196. there is a real neat way to do this which works for the LCM of any number of numerals. 420 196 -------| divide each number by a common ...
April 18, 2007 by missy
Q.1)Find hcf and lcm of the following using fundamntal theorem of arithematic 12,720 and 540. Q.2)Find the greatest number which divides 418,1354 and 2146 exactly leaving remainder 10 in each case. Q.3)If product of HCF and LCM of two numbers is 5120.One number is 6.What is ...
April 25, 2010 by stan
Let me know if this is correct now: (1)Finding the lcm using which ever method for:5,15 , and 20 8:2x2x2x3x5x5 15:2x2x2x3x5x5 20:2x2x2x3x5x5 --------------- LCM:2x2x2x3x5x5 After simplification LCM:120 (2)Find the GCF for each of the following numbers: 36, 64, 180 Prime ...
December 4, 2006 by jasmine20
math , algebra
Let me know if this is correct : (1)Finding the lcm using which ever method for:5,15 , and 20 8:2x2x2x3x5x5 15:2x2x2x3x5x5 20:2x2x2x3x5x5 --------------- LCM:2x2x2x3x5x5 After simplification LCM:120 (2)Find the GCF for each of the following numbers: 36, 64, 180 Prime Factors ...
December 5, 2006 by Jasmine
1)Find the LCM of m^2-4m-5 and m^2+8m+7. factorize both expressions you get (m+1)(m-5) and (m+1)(m+7) common factor is m+1 so LCM = (m+1)(m-5)(m+7) = m^3+3m^2-33m-35 2)Solve 8/(t+5)=(t-3)/(t+5)+(1/3). First convert the 1/3 to a fraction with (t+5) on the bottom and the other ...
May 20, 2008 by Jon
5th grade math
what is the least common multiple The least common multiple is the lowest possible number that has both numbers for a factor. For instance, if you are asked to find the LCM for 4 and 8, the LCM would be 8 because it is divisible by both 4 and 8. If you were given 3 and 4, the ...
October 5, 2006 by leo
please check my answers 1.which is smallest 5/8,3/4,9/16,7/8 =9/16 2.subtract 6 3/10-4 11/15=1 17/30 3.estimate 6 1/8* 7 4/5=48 4.lcm of 20,32=160 jon spent 1/3 of his study time doing math and 2/7 preparing for history exam. what fraction of his study time remains? = 8/21 5....
September 18, 2009 by p
If a and b are positive integers, and m=lcm(a,b), explain why m divides any common multiple of a and b. The answer is in the definition of lcm:] the smallest multiple that is exactly divisible by every member of a set of numbers. So if m is divisble by a or b, then ab divides ...
March 7, 2007 by romulo
6th grade math
Just wondering if you could check my answer to this question. Tell whether problem can be solved by using GCF or LCM. Then solve. Sean has 8inch pieces of toy train track and Ruth has 18 inch pieces of train track. How many of each piece would each child need to build tracks ...
September 9, 2013 by Alex
Please help me to find the least common multiple of 24 and 48. 1st go to this site: http://www.aaamath.com/fra66i-lcm.html Then give it a whirl and post what you think the answer is and we'll see if you need further help.
April 29, 2007 by carmen
I am 55, my motherlaw is 70, my friend is 40. How do I figure out the LCM and the GCF. My home assignment is listed as= List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger...
January 25, 2011 by melvin
Our current assignment is to find the LCM, Least Common Multiple of two polynomials. I think I'm doing it right but I'm not quite sure. For the first question: 2t^2+t-3, 2t^2+5t+3 I have 2t^2+t+3 as the LCM. Is this correct or can somebody step me through the correct method to...
February 15, 2007 by Dave
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 ...
March 8, 2007 by Rom
HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the lcm of denominators ...
November 13, 2014 by mohammad
math 6 grade
When the LCM of two numbers the same as one of the numbers?Use an example to explain. What is the LCM of six and two? so the LCM of six and two is the answer? Of course not. It is an example of what the question seeks. 3. the answer is 3! I relly apresiat this thank you How do...
November 8, 2006 by brittany
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. Make ...
January 25, 2011 by melvin
Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/9-1/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 - _________/1 multiply 1/7 = ______________. ...
March 1, 2013 by sally
O.k. this is similar to the other one I posted. There is a technique in my book how to solve similar ones but the examples aren't so good, so I have no clue were to even start. 1-(1/x)-(12/x^2) ----------------divide top by bottom 1+(6/x)+(9/x^2) Here are some of my questions...
July 21, 2007 by Sara
Runner A speed 1km/hour Runner B speed 2km/hour They start of at the same point at the oval.In a lap that is 500m, how many times will they meet at the starting point after 10 hours. I managed to get the LCM for runner A,B using the time taken to complete 1 lap A=1/2 hrs, B=1/...
February 11, 2015 by Sandy