Answers

Subtract 24/12 from 21/12

1^st number: 1 9/12, 2^nd number: 2 0/12

21/12 - 24/12 is -1/4.

Steps for subtracting fractions

1. Subtract the two fractions:
   21/12 - 24/12 = 21 - 24/12 = -3/12
2. After reducing the fraction, the answer is -1/4

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