Add 7/21 and 98/9
1st number: 7/21, 2nd number: 10 8/9
7/21 + 98/9 is 101/9.
Steps for adding 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,
7/21 = 7 × 3/21 × 3 = 21/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
98/9 = 98 × 7/9 × 7 = 686/63 - Add the two like fractions:
21/63 + 686/63 = 21 + 686/63 = 707/63 - 707/63 simplified gives 101/9
- So, 7/21 + 98/9 = 101/9
In mixed form: 112/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/21+98/9 7/42+98/9 7/21+98/18 7/63+98/9 7/21+98/27 35/21+98/9 7/21+98/45 49/21+98/9 7/21+98/63