Answers

Subtract 72/7 from 3/12

1^st number: 3/12, 2^nd number: 10 2/7

3/12 - 72/7 is -281/28.

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,
   3/12 = 3 × 7/12 × 7 = 21/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   72/7 = 72 × 12/7 × 12 = 864/84
4. Subtract the two like fractions:
   21/84 - 864/84 = 21 - 864/84 = -843/84
5. After reducing the fraction, the answer is -281/28

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