Answers

Subtract 7/16 from 4/42

4/42 - 7/16 is -115/336.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   4/42 = 4 × 8/42 × 8 = 32/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   7/16 = 7 × 21/16 × 21 = 147/336
4. Subtract the two like fractions:
   32/336 - 147/336 = 32 - 147/336 = -115/336

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