Answers

Subtract 10/21 from 14/42

14/42 - 10/21 is -1/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   14/42 = 14 × 1/42 × 1 = 14/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   10/21 = 10 × 2/21 × 2 = 20/42
4. Subtract the two like fractions:
   14/42 - 20/42 = 14 - 20/42 = -6/42
5. After reducing the fraction, the answer is -1/7

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