Answers

Subtract 63/8 from 28/15

1^st number: 1 13/15, 2^nd number: 7 7/8

28/15 - 63/8 is -721/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 8 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 15 × 8 = 120,
   28/15 = 28 × 8/15 × 8 = 224/120
3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
   63/8 = 63 × 15/8 × 15 = 945/120
4. Subtract the two like fractions:
   224/120 - 945/120 = 224 - 945/120 = -721/120

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