Answers

Subtract 90/5 from 63/8

1^st number: 7 7/8, 2^nd number: 18 0/5

63/8 - 90/5 is -81/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 5 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 8 × 5 = 40,
   63/8 = 63 × 5/8 × 5 = 315/40
3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
   90/5 = 90 × 8/5 × 8 = 720/40
4. Subtract the two like fractions:
   315/40 - 720/40 = 315 - 720/40 = -405/40
5. After reducing the fraction, the answer is -81/8

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