Subtract 1/40 from 2/12
2/12 - 1/40 is 17/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
2/12 = 2 × 10/12 × 10 = 20/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
1/40 = 1 × 3/40 × 3 = 3/120 - Subtract the two like fractions:
20/120 - 3/120 = 20 - 3/120 = 17/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12-1/40 2/12-2/40 2/24-1/40 2/12-1/80 6/12-1/40 2/12-3/40 2/36-1/40 10/12-1/40 2/12-5/40 2/60-1/40 14/12-1/40 2/12-7/40 2/84-1/40