Add 2/7 and 80/9
1st number: 2/7, 2nd number: 8 8/9
2/7 + 80/9 is 578/63.
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,
2/7 = 2 × 9/7 × 9 = 18/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
80/9 = 80 × 7/9 × 7 = 560/63 - Add the two like fractions:
18/63 + 560/63 = 18 + 560/63 = 578/63 - So, 2/7 + 80/9 = 578/63
In mixed form: 911/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7+80/9 2/14+80/9 2/7+80/18 6/7+80/9 2/21+80/9 2/7+80/27 10/7+80/9 2/35+80/9 2/7+80/45 14/7+80/9 2/49+80/9 2/7+80/63