Subtract 28/18 from 35/15
1st number: 2 5/15, 2nd number: 1 10/18
35/15 - 28/18 is 7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
35/15 = 35 × 6/15 × 6 = 210/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Subtract the two like fractions:
210/90 - 140/90 = 210 - 140/90 = 70/90 - After reducing the fraction, the answer is 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15-28/18 35/15-56/18 35/30-28/18 35/15-28/36 35/15-84/18 35/45-28/18 35/15-28/54 35/75-28/18 35/15-28/90