Subtract 4/60 from 21/40
21/40 - 4/60 is 11/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
4/60 = 4 × 2/60 × 2 = 8/120 - Subtract the two like fractions:
63/120 - 8/120 = 63 - 8/120 = 55/120 - After reducing the fraction, the answer is 11/24
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