Add 80/35 and 70/9
1st number: 2 10/35, 2nd number: 7 7/9
80/35 + 70/9 is 634/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
80/35 = 80 × 9/35 × 9 = 720/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
70/9 = 70 × 35/9 × 35 = 2450/315 - Add the two like fractions:
720/315 + 2450/315 = 720 + 2450/315 = 3170/315 - 3170/315 simplified gives 634/63
- So, 80/35 + 70/9 = 634/63
In mixed form: 104/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+70/9 80/35+70/18 80/35+70/27 80/35+70/45 80/35+70/63