Subtract 12/40 from 1/24
1/24 - 12/40 is -31/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
1/24 = 1 × 5/24 × 5 = 5/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Subtract the two like fractions:
5/120 - 36/120 = 5 - 36/120 = -31/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/24-12/40 1/24-24/40 1/48-12/40 1/24-12/80 3/24-12/40 1/24-36/40 1/72-12/40 5/24-12/40 1/24-60/40 7/24-12/40 1/24-84/40