Answers

Subtract 4/16 from 2/42

2/42 - 4/16 is -17/84.

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,
   2/42 = 2 × 8/42 × 8 = 16/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   4/16 = 4 × 21/16 × 21 = 84/336
4. Subtract the two like fractions:
   16/336 - 84/336 = 16 - 84/336 = -68/336
5. After reducing the fraction, the answer is -17/84

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