Answers

Subtract 27/14 from 21/12

1^st number: 1 9/12, 2^nd number: 1 13/14

21/12 - 27/14 is -5/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 14 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   21/12 = 21 × 7/12 × 7 = 147/84
3. Likewise, for the 2nd fraction, since 14 × 6 = 84,
   27/14 = 27 × 6/14 × 6 = 162/84
4. Subtract the two like fractions:
   147/84 - 162/84 = 147 - 162/84 = -15/84
5. After reducing the fraction, the answer is -5/28

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