Subtract 45/24 from 42/40
1st number: 1 2/40, 2nd number: 1 21/24
42/40 - 45/24 is -33/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
45/24 = 45 × 5/24 × 5 = 225/120 - Subtract the two like fractions:
126/120 - 225/120 = 126 - 225/120 = -99/120 - After reducing the fraction, the answer is -33/40
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