Subtract 10/20 from 3/24
3/24 - 10/20 is -3/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
3/24 = 3 × 5/24 × 5 = 15/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
10/20 = 10 × 6/20 × 6 = 60/120 - Subtract the two like fractions:
15/120 - 60/120 = 15 - 60/120 = -45/120 - After reducing the fraction, the answer is -3/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/24-10/20 3/48-10/20 3/24-10/40 9/24-10/20 3/24-30/20 3/72-10/20 3/24-10/60 15/24-10/20 3/24-50/20 21/24-10/20 3/24-70/20