Answers

Subtract 54/7 from 27/12

1^st number: 2 3/12, 2^nd number: 7 5/7

27/12 - 54/7 is -153/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   27/12 = 27 × 7/12 × 7 = 189/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   54/7 = 54 × 12/7 × 12 = 648/84
4. Subtract the two like fractions:
   189/84 - 648/84 = 189 - 648/84 = -459/84
5. After reducing the fraction, the answer is -153/28

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