Answers

Subtract 63/7 from 56/20

1^st number: 2 16/20, 2^nd number: 9 0/7

56/20 - 63/7 is -31/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 7 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   56/20 = 56 × 7/20 × 7 = 392/140
3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
   63/7 = 63 × 20/7 × 20 = 1260/140
4. Subtract the two like fractions:
   392/140 - 1260/140 = 392 - 1260/140 = -868/140
5. After reducing the fraction, the answer is -31/5

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