Subtract 84/28 from 3/15
1st number: 3/15, 2nd number: 3 0/28
3/15 - 84/28 is -14/5.
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,
3/15 = 3 × 28/15 × 28 = 84/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
84/28 = 84 × 15/28 × 15 = 1260/420 - Subtract the two like fractions:
84/420 - 1260/420 = 84 - 1260/420 = -1176/420 - After reducing the fraction, the answer is -14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-84/28 3/30-84/28 3/15-84/56 9/15-84/28 3/45-84/28 3/75-84/28 21/15-84/28