Answers

Subtract 63/8 from 80/7

1^st number: 11 3/7, 2^nd number: 7 7/8

80/7 - 63/8 is 199/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 8 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 7 × 8 = 56,
   80/7 = 80 × 8/7 × 8 = 640/56
3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
   63/8 = 63 × 7/8 × 7 = 441/56
4. Subtract the two like fractions:
   640/56 - 441/56 = 640 - 441/56 = 199/56
5. In mixed form: 331/56

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