Subtract 2/28 from 7/15
7/15 - 2/28 is 83/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
7/15 = 7 × 28/15 × 28 = 196/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Subtract the two like fractions:
196/420 - 30/420 = 196 - 30/420 = 166/420 - After reducing the fraction, the answer is 83/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15-2/28 7/15-4/28 7/30-2/28 7/15-2/56 21/15-2/28 7/15-6/28 7/45-2/28 7/15-2/84 35/15-2/28 7/15-10/28 7/75-2/28 49/15-2/28 7/15-14/28