Subtract 4/28 from 1/15
1/15 - 4/28 is -8/105.
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,
1/15 = 1 × 28/15 × 28 = 28/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
4/28 = 4 × 15/28 × 15 = 60/420 - Subtract the two like fractions:
28/420 - 60/420 = 28 - 60/420 = -32/420 - After reducing the fraction, the answer is -8/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-4/28 1/15-8/28 1/30-4/28 1/15-4/56 3/15-4/28 1/15-12/28 1/45-4/28 1/15-4/84 5/15-4/28 1/15-20/28 1/75-4/28 7/15-4/28