Subtract 28/40 from 4/24
4/24 - 28/40 is -8/15.
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,
4/24 = 4 × 5/24 × 5 = 20/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
28/40 = 28 × 3/40 × 3 = 84/120 - Subtract the two like fractions:
20/120 - 84/120 = 20 - 84/120 = -64/120 - After reducing the fraction, the answer is -8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/24-28/40 4/24-56/40 4/48-28/40 4/24-28/80 12/24-28/40 4/24-84/40 4/72-28/40 20/24-28/40 28/24-28/40