Is this answer correct for this problem? PLEASE ANSWER WITHIN 24 HOURS

Question

Ok this is my problem and the steps i used to get the answer, is my answer correct or not? My problem is:

3/8h+7/12=3/4

3/8h+7/12-12/7=3/4-12/7

8/3*3/8h=27/28*8/3

18/7 is my answer

Answer 1

No.  You must use a common denominator.

 

24 would be the common denominator here as in problem before.

 

3/8h + 7/12 = 3/4

9/24h + 14/24 = 18/24

 

subtract 14/24 from both sides

 

9/24h + 14/24 - 14/24 = 18/24 - 14/24

9/24h = 4/24

 

multiply 24/9 on each side

 

24/9 * 9/24 h = 4/24 * 24/9

 

simplify

 

h = 4/9

 

Plug it back into common denominator equation

9/24(4/9) + 14/24 = 18/24

 

the nine's cancel out in the first part of the equation

4/24 + 14/24 = 18/24 Correct (ALWAYS plug your answer back in, that will tell you if you are right!!!