Subtract 15/60 from 72/40
1st number: 1 32/40, 2nd number: 15/60
72/40 - 15/60 is 31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
15/60 = 15 × 2/60 × 2 = 30/120 - Subtract the two like fractions:
216/120 - 30/120 = 216 - 30/120 = 186/120 - After reducing the fraction, the answer is 31/20
- In mixed form: 111/20
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