Answers

Subtract 96/42 from 15/12

1^st number: 1 3/12, 2^nd number: 2 12/42

15/12 - 96/42 is -29/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   15/12 = 15 × 7/12 × 7 = 105/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   96/42 = 96 × 2/42 × 2 = 192/84
4. Subtract the two like fractions:
   105/84 - 192/84 = 105 - 192/84 = -87/84
5. After reducing the fraction, the answer is -29/28

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