Subtract 15/40 from 72/12
1st number: 6 0/12, 2nd number: 15/40
72/12 - 15/40 is 45/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
72/12 = 72 × 10/12 × 10 = 720/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Subtract the two like fractions:
720/120 - 45/120 = 720 - 45/120 = 675/120 - After reducing the fraction, the answer is 45/8
- In mixed form: 55/8
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