(a) 50% of 164 (b)75%of 12 (c) 25/2 of 64 help me in these ques

of comparing quantities
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Here goes the answer. Please mark brainliest.

First, convert the mixed numbers to improper fractions:
15 1/2=31/2
4 1/4=17/4
now, we have to find the ratio of 31/2 to 17/4
multiply both by 4 to get rid of the denominator (this won't change the ratio because we're multiplying both by 4)
so the ratio is 62 to 17=62/17=3 11/17