Add 12/9 and 70/35
1st number: 1 3/9, 2nd number: 2 0/35
12/9 + 70/35 is 10/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
12/9 = 12 × 35/9 × 35 = 420/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
70/35 = 70 × 9/35 × 9 = 630/315 - Add the two like fractions:
420/315 + 630/315 = 420 + 630/315 = 1050/315 - 1050/315 simplified gives 10/3
- So, 12/9 + 70/35 = 10/3
In mixed form: 31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9+70/35 12/18+70/35 36/9+70/35 12/27+70/35 60/9+70/35 12/45+70/35 84/9+70/35 12/63+70/35