Answers

Subtract 81/72 from 30/72

1^st number: 30/72, 2^nd number: 1 9/72

30/72 - 81/72 is -17/24.

Steps for subtracting fractions

1. Subtract the two fractions:
   30/72 - 81/72 = 30 - 81/72 = -51/72
2. After reducing the fraction, the answer is -17/24

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