Subtract 7/9 from 98/21
1st number: 4 14/21, 2nd number: 7/9
98/21 - 7/9 is 35/9.
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,
98/21 = 98 × 3/21 × 3 = 294/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
7/9 = 7 × 7/9 × 7 = 49/63 - Subtract the two like fractions:
294/63 - 49/63 = 294 - 49/63 = 245/63 - After reducing the fraction, the answer is 35/9
- In mixed form: 38/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-14/9 98/42-7/9 98/21-7/18 98/21-21/9 98/63-7/9 98/21-7/27 98/21-35/9 98/21-7/45 98/21-49/9 98/21-7/63