Subtract 28/15 from 5/12
1st number: 5/12, 2nd number: 1 13/15
5/12 - 28/15 is -29/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
5/12 = 5 × 5/12 × 5 = 25/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Subtract the two like fractions:
25/60 - 112/60 = 25 - 112/60 = -87/60 - After reducing the fraction, the answer is -29/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12-28/15 5/12-56/15 5/24-28/15 5/12-28/30 15/12-28/15 5/12-84/15 5/36-28/15 5/12-28/45 25/12-28/15 5/60-28/15 5/12-28/75 35/12-28/15 5/84-28/15