Answers

Subtract 28/21 from 3/21

1^st number: 3/21, 2^nd number: 1 7/21

3/21 - 28/21 is -25/21.

Steps for subtracting fractions

1. Subtract the two fractions:
   3/21 - 28/21 = 3 - 28/21 = -25/21

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