Answers

Subtract 90/42 from 81/42

1^st number: 1 39/42, 2^nd number: 2 6/42

81/42 - 90/42 is -3/14.

Steps for subtracting fractions

1. Subtract the two fractions:
   81/42 - 90/42 = 81 - 90/42 = -9/42
2. After reducing the fraction, the answer is -3/14

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