Answers

Subtract 16/6 from 27/21

1^st number: 1 6/21, 2^nd number: 2 4/6

27/21 - 16/6 is -29/21.

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,
   27/21 = 27 × 2/21 × 2 = 54/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   16/6 = 16 × 7/6 × 7 = 112/42
4. Subtract the two like fractions:
   54/42 - 112/42 = 54 - 112/42 = -58/42
5. After reducing the fraction, the answer is -29/21

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