Answers

Subtract 45/20 from 63/56

1^st number: 1 7/56, 2^nd number: 2 5/20

63/56 - 45/20 is -9/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 20 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   63/56 = 63 × 5/56 × 5 = 315/280
3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
   45/20 = 45 × 14/20 × 14 = 630/280
4. Subtract the two like fractions:
   315/280 - 630/280 = 315 - 630/280 = -315/280
5. After reducing the fraction, the answer is -9/8

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