SOLUTION: when doing this problem can you use the cross multiply method or do you use the LCM/LCD method. I tried to do the cross mulitply method but the answer did not turn out right.....Ca

Question 142500: when doing this problem can you use the cross multiply method or do you use the LCM/LCD method. I tried to do the cross mulitply method but the answer did not turn out right.....Can you help
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
If you use the "cross multiply" method, you must use the PRODUCT of the two denominators for your LCD!! Sometimes this method is convenient, especially when the LCD is actually the product of the two denominators anyway. Sometimes the other method is easier.

R^2
RELATED QUESTIONS
when do you cross multiply fractions and when do you just multiply the numerators and... (answered by fractalier)

21. 3X-2Y+-13 9X+5Y=16 I tried to solve this equation using the the process of... (answered by stanbon)

Show all steps in solving the problem and explain what you are doing as you go... (answered by solver91311)

In your own words, explain in detail why we can determine which of two fractions is... (answered by stanbon)

[(x/y)-(y/x]/[(1/y)+(1/x)] when i use the LCD method i get (x-y)/2 and i know the correct (answered by rothauserc)

[(x/y)-(y/x]/[(1/y)+(1+x)] when i use the LCD method i get (x-y)/2 and i know the correct (answered by Theo)

how do you cross multiply when there is a variable in the... (answered by checkley71)

how do I solve the equation, 11 over4= 7 over6y -9 over4 I tried cross multiplying 4... (answered by MathLover1)

Systems of equations can be solved by graphing or by using substitution or elimination.... (answered by stanbon)