Answers

Subtract 63/80 from 30/20

1^st number: 1 10/20, 2^nd number: 63/80

30/20 - 63/80 is 57/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   30/20 = 30 × 4/20 × 4 = 120/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
4. Subtract the two like fractions:
   120/80 - 63/80 = 120 - 63/80 = 57/80

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