Add 10/7 and 72/9
1st number: 1 3/7, 2nd number: 8 0/9
10/7 + 72/9 is 66/7.
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,
10/7 = 10 × 9/7 × 9 = 90/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
72/9 = 72 × 7/9 × 7 = 504/63 - Add the two like fractions:
90/63 + 504/63 = 90 + 504/63 = 594/63 - 594/63 simplified gives 66/7
- So, 10/7 + 72/9 = 66/7
In mixed form: 93/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/7+72/9 10/14+72/9 10/7+72/18 30/7+72/9 10/21+72/9 10/7+72/27 50/7+72/9 10/35+72/9 10/7+72/45 70/7+72/9 10/49+72/9 10/7+72/63