Answers

Subtract 10/21 from 81/21

1^st number: 3 18/21, 2^nd number: 10/21

81/21 - 10/21 is 71/21.

Steps for subtracting fractions

1. Subtract the two fractions:
   81/21 - 10/21 = 81 - 10/21 = 71/21
2. In mixed form: 38/21

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