Answers

Subtract 21/20 from 28/20

1^st number: 1 8/20, 2^nd number: 1 1/20

28/20 - 21/20 is 7/20.

Steps for subtracting fractions

1. Subtract the two fractions:
   28/20 - 21/20 = 28 - 21/20 = 7/20

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