Subtract 20/60 from 3/40
3/40 - 20/60 is -31/120.
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,
3/40 = 3 × 3/40 × 3 = 9/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
20/60 = 20 × 2/60 × 2 = 40/120 - Subtract the two like fractions:
9/120 - 40/120 = 9 - 40/120 = -31/120
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