Subtract 28/6 from 7/15
1st number: 7/15, 2nd number: 4 4/6
7/15 - 28/6 is -21/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
7/15 = 7 × 2/15 × 2 = 14/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
28/6 = 28 × 5/6 × 5 = 140/30 - Subtract the two like fractions:
14/30 - 140/30 = 14 - 140/30 = -126/30 - After reducing the fraction, the answer is -21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15-28/6 7/15-56/6 7/30-28/6 7/15-28/12 21/15-28/6 7/15-84/6 7/45-28/6 7/15-28/18 35/15-28/6 7/75-28/6 7/15-28/30 49/15-28/6 7/15-28/42