Answers

Subtract 4/18 from 21/18

1^st number: 1 3/18, 2^nd number: 4/18

21/18 - 4/18 is 17/18.

Steps for subtracting fractions

1. Subtract the two fractions:
   21/18 - 4/18 = 21 - 4/18 = 17/18

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