Answers

Subtract 21/7 from 25/12

1^st number: 2 1/12, 2^nd number: 3 0/7

25/12 - 21/7 is -11/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   25/12 = 25 × 7/12 × 7 = 175/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   21/7 = 21 × 12/7 × 12 = 252/84
4. Subtract the two like fractions:
   175/84 - 252/84 = 175 - 252/84 = -77/84
5. After reducing the fraction, the answer is -11/12

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