Answers

Subtract 81/21 from 4/21

1^st number: 4/21, 2^nd number: 3 18/21

4/21 - 81/21 is -11/3.

Steps for subtracting fractions

1. Subtract the two fractions:
   4/21 - 81/21 = 4 - 81/21 = -77/21
2. After reducing the fraction, the answer is -11/3

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