Answers

Subtract 21/20 from 72/20

1^st number: 3 12/20, 2^nd number: 1 1/20

72/20 - 21/20 is 51/20.

Steps for subtracting fractions

1. Subtract the two fractions:
   72/20 - 21/20 = 72 - 21/20 = 51/20
2. In mixed form: 211/20

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