Answers

Subtract 27/4 from 21/14

1^st number: 1 7/14, 2^nd number: 6 3/4

21/14 - 27/4 is -21/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 4 is 28
   
   Next, find the equivalent fraction of both fractional numbers with denominator 28
2. For the 1st fraction, since 14 × 2 = 28,
   21/14 = 21 × 2/14 × 2 = 42/28
3. Likewise, for the 2nd fraction, since 4 × 7 = 28,
   27/4 = 27 × 7/4 × 7 = 189/28
4. Subtract the two like fractions:
   42/28 - 189/28 = 42 - 189/28 = -147/28
5. After reducing the fraction, the answer is -21/4

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