Subtract 21/27 from 35/15
1st number: 2 5/15, 2nd number: 21/27
35/15 - 21/27 is 14/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
35/15 = 35 × 9/15 × 9 = 315/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Subtract the two like fractions:
315/135 - 105/135 = 315 - 105/135 = 210/135 - After reducing the fraction, the answer is 14/9
- In mixed form: 15/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15-21/27 35/15-42/27 35/30-21/27 35/15-21/54 35/15-63/27 35/45-21/27 35/15-21/81 35/75-21/27