Add 15/7 and 98/9
1st number: 2 1/7, 2nd number: 10 8/9
15/7 + 98/9 is 821/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
15/7 = 15 × 9/7 × 9 = 135/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
98/9 = 98 × 7/9 × 7 = 686/63 - Add the two like fractions:
135/63 + 686/63 = 135 + 686/63 = 821/63 - So, 15/7 + 98/9 = 821/63
In mixed form: 132/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+98/9 15/14+98/9 15/7+98/18 45/7+98/9 15/21+98/9 15/7+98/27 75/7+98/9 15/35+98/9 15/7+98/45 15/49+98/9 15/7+98/63