Add 72/7 and 7/9
1st number: 10 2/7, 2nd number: 7/9
72/7 + 7/9 is 697/63.
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,
72/7 = 72 × 9/7 × 9 = 648/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
7/9 = 7 × 7/9 × 7 = 49/63 - Add the two like fractions:
648/63 + 49/63 = 648 + 49/63 = 697/63 - So, 72/7 + 7/9 = 697/63
In mixed form: 114/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7+14/9 72/14+7/9 72/7+7/18 72/7+21/9 72/21+7/9 72/7+7/27 72/7+35/9 72/35+7/9 72/7+7/45 72/7+49/9 72/49+7/9 72/7+7/63