SOLUTION: solve for b/a: 2a/5=6b/8

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Question 983838: solve for b/a: 2a/5=6b/8
Answer by Timnewman(323) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
b/a = 8/15.
Here is the working:

if %282%2Aa%29%2F5=%286%2Ab%29%2F8
Then,
30b=16a
divide bothside by 16a
%2830%2Ab%29%2F%2816%2Aa%29=1
multiply bothside by 16/30
%28%2830%2Ab%29%2F%2816a%29%29%2A%2816%2F30%29=1%2A%2816%2F30%29
cancel out,
b%2Fa=16%2F30
b%2Fa=8%2F15