Subtract 4/9 from 35/21
1st number: 1 14/21, 2nd number: 4/9
35/21 - 4/9 is 11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
35/21 = 35 × 3/21 × 3 = 105/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
4/9 = 4 × 7/9 × 7 = 28/63 - Subtract the two like fractions:
105/63 - 28/63 = 105 - 28/63 = 77/63 - After reducing the fraction, the answer is 11/9
- In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21-4/9 35/21-8/9 35/42-4/9 35/21-4/18 35/21-12/9 35/63-4/9 35/21-4/27 35/21-20/9 35/21-4/45 35/21-28/9 35/21-4/63