Answers

Subtract 63/80 from 7/4

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

7/4 - 63/80 is 77/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   7/4 = 7 × 20/4 × 20 = 140/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
4. Subtract the two like fractions:
   140/80 - 63/80 = 140 - 63/80 = 77/80

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