Subtract 4/7 from 5/15
5/15 - 4/7 is -5/21.
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,
5/15 = 5 × 7/15 × 7 = 35/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
4/7 = 4 × 15/7 × 15 = 60/105 - Subtract the two like fractions:
35/105 - 60/105 = 35 - 60/105 = -25/105 - After reducing the fraction, the answer is -5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15-4/7 5/15-8/7 5/30-4/7 5/15-4/14 5/15-12/7 5/45-4/7 5/15-4/21 25/15-4/7 5/15-20/7 5/75-4/7 5/15-4/35 35/15-4/7 5/15-28/7 5/15-4/49