Subtract 3/15 from 2/8
2/8 - 3/15 is 1/20.
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,
2/8 = 2 × 15/8 × 15 = 30/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
3/15 = 3 × 8/15 × 8 = 24/120 - Subtract the two like fractions:
30/120 - 24/120 = 30 - 24/120 = 6/120 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-3/15 2/8-6/15 2/16-3/15 2/8-3/30 6/8-3/15 2/8-9/15 2/24-3/15 2/8-3/45 10/8-3/15 2/40-3/15 2/8-3/75 14/8-3/15 2/8-21/15 2/56-3/15