Answers

Subtract 81/7 from 18/56

1^st number: 18/56, 2^nd number: 11 4/7

18/56 - 81/7 is -45/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 7 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 56 × 1 = 56,
   18/56 = 18 × 1/56 × 1 = 18/56
3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
   81/7 = 81 × 8/7 × 8 = 648/56
4. Subtract the two like fractions:
   18/56 - 648/56 = 18 - 648/56 = -630/56
5. After reducing the fraction, the answer is -45/4

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