Answers

Subtract 21/8 from 63/56

1^st number: 1 7/56, 2^nd number: 2 5/8

63/56 - 21/8 is -3/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 8 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 56 × 1 = 56,
   63/56 = 63 × 1/56 × 1 = 63/56
3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
   21/8 = 21 × 7/8 × 7 = 147/56
4. Subtract the two like fractions:
   63/56 - 147/56 = 63 - 147/56 = -84/56
5. After reducing the fraction, the answer is -3/2

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