Subtract 21/24 from 2/40
2/40 - 21/24 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,
2/40 = 2 × 3/40 × 3 = 6/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Subtract the two like fractions:
6/120 - 105/120 = 6 - 105/120 = -99/120 - After reducing the fraction, the answer is -33/40
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