Subtract 42/40 from 10/15
1st number: 10/15, 2nd number: 1 2/40
10/15 - 42/40 is -23/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
10/15 = 10 × 8/15 × 8 = 80/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Subtract the two like fractions:
80/120 - 126/120 = 80 - 126/120 = -46/120 - After reducing the fraction, the answer is -23/60
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