Answers

Subtract 63/4 from 63/80

1^st number: 63/80, 2^nd number: 15 3/4

63/80 - 63/4 is -1197/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 4 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
3. Likewise, for the 2nd fraction, since 4 × 20 = 80,
   63/4 = 63 × 20/4 × 20 = 1260/80
4. Subtract the two like fractions:
   63/80 - 1260/80 = 63 - 1260/80 = -1197/80

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