Answers

Subtract 72/21 from 24/21

1^st number: 1 3/21, 2^nd number: 3 9/21

24/21 - 72/21 is -16/7.

Steps for subtracting fractions

1. Subtract the two fractions:
   24/21 - 72/21 = 24 - 72/21 = -48/21
2. After reducing the fraction, the answer is -16/7

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