Answers

Subtract 72/54 from 12/56

1^st number: 12/56, 2^nd number: 1 18/54

12/56 - 72/54 is -47/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 54 is 1512
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1512
2. For the 1st fraction, since 56 × 27 = 1512,
   12/56 = 12 × 27/56 × 27 = 324/1512
3. Likewise, for the 2nd fraction, since 54 × 28 = 1512,
   72/54 = 72 × 28/54 × 28 = 2016/1512
4. Subtract the two like fractions:
   324/1512 - 2016/1512 = 324 - 2016/1512 = -1692/1512
5. After reducing the fraction, the answer is -47/42

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