Add 3/9 and 70/7
1st number: 3/9, 2nd number: 10 0/7
3/9 + 70/7 is 31/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
3/9 = 3 × 7/9 × 7 = 21/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
70/7 = 70 × 9/7 × 9 = 630/63 - Add the two like fractions:
21/63 + 630/63 = 21 + 630/63 = 651/63 - 651/63 simplified gives 31/3
- So, 3/9 + 70/7 = 31/3
In mixed form: 101/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9+70/7 3/18+70/7 3/9+70/14 3/27+70/7 3/9+70/21 15/9+70/7 3/45+70/7 3/9+70/35 21/9+70/7 3/63+70/7 3/9+70/49