Answers

Subtract 56/12 from 15/70

1^st number: 15/70, 2^nd number: 4 8/12

15/70 - 56/12 is -187/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 12 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   15/70 = 15 × 6/70 × 6 = 90/420
3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
   56/12 = 56 × 35/12 × 35 = 1960/420
4. Subtract the two like fractions:
   90/420 - 1960/420 = 90 - 1960/420 = -1870/420
5. After reducing the fraction, the answer is -187/42

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