Answers

Subtract 8/6 from 12/21

1^st number: 12/21, 2^nd number: 1 2/6

12/21 - 8/6 is -16/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 6 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   12/21 = 12 × 2/21 × 2 = 24/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   8/6 = 8 × 7/6 × 7 = 56/42
4. Subtract the two like fractions:
   24/42 - 56/42 = 24 - 56/42 = -32/42
5. After reducing the fraction, the answer is -16/21

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