Answers

Subtract 12/18 from 21/18

1^st number: 1 3/18, 2^nd number: 12/18

21/18 - 12/18 is 1/2.

Steps for subtracting fractions

1. Subtract the two fractions:
   21/18 - 12/18 = 21 - 12/18 = 9/18
2. After reducing the fraction, the answer is 1/2

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