Answers

Subtract 90/63 from 72/63

1^st number: 1 9/63, 2^nd number: 1 27/63

72/63 - 90/63 is -2/7.

Steps for subtracting fractions

1. Subtract the two fractions:
   72/63 - 90/63 = 72 - 90/63 = -18/63
2. After reducing the fraction, the answer is -2/7

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