Answers

Subtract 63/16 from 21/16

1^st number: 1 5/16, 2^nd number: 3 15/16

21/16 - 63/16 is -21/8.

Steps for subtracting fractions

1. Subtract the two fractions:
   21/16 - 63/16 = 21 - 63/16 = -42/16
2. After reducing the fraction, the answer is -21/8

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