Subtract 1/9 from 21/14
1st number: 1 7/14, 2nd number: 1/9
21/14 - 1/9 is 25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
21/14 = 21 × 9/14 × 9 = 189/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
1/9 = 1 × 14/9 × 14 = 14/126 - Subtract the two like fractions:
189/126 - 14/126 = 189 - 14/126 = 175/126 - After reducing the fraction, the answer is 25/18
- In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-1/9 21/14-2/9 21/28-1/9 21/14-1/18 63/14-1/9 21/14-3/9 21/42-1/9 21/14-1/27 21/14-5/9 21/70-1/9 21/14-1/45 21/14-7/9 21/98-1/9 21/14-1/63