Answers

Subtract 90/20 from 21/20

1^st number: 1 1/20, 2^nd number: 4 10/20

21/20 - 90/20 is -69/20.

Steps for subtracting fractions

1. Subtract the two fractions:
   21/20 - 90/20 = 21 - 90/20 = -69/20

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