Answers

Subtract 21/96 from 16/42

16/42 - 21/96 is 109/672.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 96 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 42 × 16 = 672,
   16/42 = 16 × 16/42 × 16 = 256/672
3. Likewise, for the 2nd fraction, since 96 × 7 = 672,
   21/96 = 21 × 7/96 × 7 = 147/672
4. Subtract the two like fractions:
   256/672 - 147/672 = 256 - 147/672 = 109/672

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