Answers

Subtract 20/30 from 63/40

1^st number: 1 23/40, 2^nd number: 20/30

63/40 - 20/30 is 109/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   63/40 = 63 × 3/40 × 3 = 189/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   20/30 = 20 × 4/30 × 4 = 80/120
4. Subtract the two like fractions:
   189/120 - 80/120 = 189 - 80/120 = 109/120

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