Subtract 30/24 from 20/15
1st number: 1 5/15, 2nd number: 1 6/24
20/15 - 30/24 is 1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
20/15 = 20 × 8/15 × 8 = 160/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
30/24 = 30 × 5/24 × 5 = 150/120 - Subtract the two like fractions:
160/120 - 150/120 = 160 - 150/120 = 10/120 - After reducing the fraction, the answer is 1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-30/24 20/15-60/24 20/30-30/24 20/15-30/48 60/15-30/24 20/15-90/24 20/45-30/24 20/15-30/72 20/75-30/24