Answers

Subtract 54/21 from 7/6

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

7/6 - 54/21 is -59/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 6 × 7 = 42,
   7/6 = 7 × 7/6 × 7 = 49/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   54/21 = 54 × 2/21 × 2 = 108/42
4. Subtract the two like fractions:
   49/42 - 108/42 = 49 - 108/42 = -59/42

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