Subtract 49/15 from 25/28
1st number: 25/28, 2nd number: 3 4/15
25/28 - 49/15 is -997/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
25/28 = 25 × 15/28 × 15 = 375/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
49/15 = 49 × 28/15 × 28 = 1372/420 - Subtract the two like fractions:
375/420 - 1372/420 = 375 - 1372/420 = -997/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28-49/15 25/28-98/15 25/56-49/15 25/28-49/30 75/28-49/15 25/84-49/15 25/28-49/45 25/28-49/75