Answers

Subtract 20/18 from 81/18

1^st number: 4 9/18, 2^nd number: 1 2/18

81/18 - 20/18 is 61/18.

Steps for subtracting fractions

1. Subtract the two fractions:
   81/18 - 20/18 = 81 - 20/18 = 61/18
2. In mixed form: 37/18

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