book Maths Puzzle Numerical Ability

2/5x+1/2y=278/95

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3 Y
- = -
7 56
I just need to know if I am right or not. My question is Reduce the fraction
-20t^5 u^2 v^3
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48t^7 u^4 v

I think the answer is

-5v^2
---------
12t^2 u^2