Subtract 72/15 from 6/40
1st number: 6/40, 2nd number: 4 12/15
6/40 - 72/15 is -93/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
72/15 = 72 × 8/15 × 8 = 576/120 - Subtract the two like fractions:
18/120 - 576/120 = 18 - 576/120 = -558/120 - After reducing the fraction, the answer is -93/20
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