Subtract 10/15 from 20/8
1st number: 2 4/8, 2nd number: 10/15
20/8 - 10/15 is 11/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
10/15 = 10 × 8/15 × 8 = 80/120 - Subtract the two like fractions:
300/120 - 80/120 = 300 - 80/120 = 220/120 - After reducing the fraction, the answer is 11/6
- In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8-10/15 20/8-20/15 20/16-10/15 20/8-10/30 60/8-10/15 20/8-30/15 20/24-10/15 20/8-10/45 20/8-50/15 20/40-10/15 20/8-10/75 20/8-70/15 20/56-10/15