Subtract 63/24 from 72/20
1st number: 3 12/20, 2nd number: 2 15/24
72/20 - 63/24 is 39/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 20 × 6 = 120,
72/20 = 72 × 6/20 × 6 = 432/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
63/24 = 63 × 5/24 × 5 = 315/120 - Subtract the two like fractions:
432/120 - 315/120 = 432 - 315/120 = 117/120 - After reducing the fraction, the answer is 39/40
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