Subtract 2/7 from 4/15
4/15 - 2/7 is -2/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
4/15 = 4 × 7/15 × 7 = 28/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
2/7 = 2 × 15/7 × 15 = 30/105 - Subtract the two like fractions:
28/105 - 30/105 = 28 - 30/105 = -2/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-2/7 4/15-4/7 4/30-2/7 4/15-2/14 12/15-2/7 4/15-6/7 4/45-2/7 4/15-2/21 20/15-2/7 4/15-10/7 4/75-2/7 4/15-2/35 28/15-2/7 4/15-14/7 4/15-2/49