Answers

Subtract 48/42 from 21/96

1^st number: 21/96, 2^nd number: 1 6/42

21/96 - 48/42 is -207/224.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 42 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 96 × 7 = 672,
   21/96 = 21 × 7/96 × 7 = 147/672
3. Likewise, for the 2nd fraction, since 42 × 16 = 672,
   48/42 = 48 × 16/42 × 16 = 768/672
4. Subtract the two like fractions:
   147/672 - 768/672 = 147 - 768/672 = -621/672
5. After reducing the fraction, the answer is -207/224

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