Answers

Subtract 90/84 from 81/84

1^st number: 81/84, 2^nd number: 1 6/84

81/84 - 90/84 is -3/28.

Steps for subtracting fractions

1. Subtract the two fractions:
   81/84 - 90/84 = 81 - 90/84 = -9/84
2. After reducing the fraction, the answer is -3/28

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