Answers

Subtract 81/56 from 90/12

1^st number: 7 6/12, 2^nd number: 1 25/56

90/12 - 81/56 is 339/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 12 × 14 = 168,
   90/12 = 90 × 14/12 × 14 = 1260/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   81/56 = 81 × 3/56 × 3 = 243/168
4. Subtract the two like fractions:
   1260/168 - 243/168 = 1260 - 243/168 = 1017/168
5. After reducing the fraction, the answer is 339/56
6. In mixed form: 63/56

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