Subtract 72/20 from 9/24
1st number: 9/24, 2nd number: 3 12/20
9/24 - 72/20 is -129/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
9/24 = 9 × 5/24 × 5 = 45/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
72/20 = 72 × 6/20 × 6 = 432/120 - Subtract the two like fractions:
45/120 - 432/120 = 45 - 432/120 = -387/120 - After reducing the fraction, the answer is -129/40
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