Explanation:
8/32
=2x2x2/2x2x2x2x2
=2^3/2^5
63/72
=3x3x7/2x2x2x3x3
=3^2x7/2^3 x 3^2
50/60
=2x5x5/2x2x3x5
=2x5^2/2^2x3x5
15/36
=3x5/2x2x3x3
=3x5/2^2 x 3^2
40/50
=2x2x2x5/2x5x5
=2^3x5/2x5^2
45/54
=3x3x5/2x3x3x3
=3^2x5/2x3^3
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