Subtract 1/12 from 1/40
1/40 - 1/12 is -7/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
1/40 = 1 × 3/40 × 3 = 3/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
1/12 = 1 × 10/12 × 10 = 10/120 - Subtract the two like fractions:
3/120 - 10/120 = 3 - 10/120 = -7/120
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