Answers

Subtract 8/14 from 6/21

6/21 - 8/14 is -2/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 14 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   6/21 = 6 × 2/21 × 2 = 12/42
3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
   8/14 = 8 × 3/14 × 3 = 24/42
4. Subtract the two like fractions:
   12/42 - 24/42 = 12 - 24/42 = -12/42
5. After reducing the fraction, the answer is -2/7

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