Answers

Subtract 70/21 from 70/96

1^st number: 70/96, 2^nd number: 3 7/21

70/96 - 70/21 is -125/48.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 21 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 96 × 7 = 672,
   70/96 = 70 × 7/96 × 7 = 490/672
3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
   70/21 = 70 × 32/21 × 32 = 2240/672
4. Subtract the two like fractions:
   490/672 - 2240/672 = 490 - 2240/672 = -1750/672
5. After reducing the fraction, the answer is -125/48

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