Add 70/9 and 12/7
1st number: 7 7/9, 2nd number: 1 5/7
70/9 + 12/7 is 598/63.
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,
70/9 = 70 × 7/9 × 7 = 490/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
12/7 = 12 × 9/7 × 9 = 108/63 - Add the two like fractions:
490/63 + 108/63 = 490 + 108/63 = 598/63 - So, 70/9 + 12/7 = 598/63
In mixed form: 931/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+24/7 70/18+12/7 70/9+12/14 70/9+36/7 70/27+12/7 70/9+12/21 70/9+60/7 70/45+12/7 70/9+12/35 70/9+84/7 70/63+12/7 70/9+12/49