exam Maths Puzzle Numerical Ability

I am supposed to simplify this problem and I am not sure I have done it correctly.

2+2/5 / 2-1/2

is the answer 8/5?

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exam Other Question

How do I solve:

1) 1/3f = 4 - 2/3f
2) 3q - 5/8 = 0

Thank you
Maria
find the logarithm 1125,2.987,0.557