Add 12/45 and 70/35
1st number: 12/45, 2nd number: 2 0/35
12/45 + 70/35 is 34/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
70/35 = 70 × 9/35 × 9 = 630/315 - Add the two like fractions:
84/315 + 630/315 = 84 + 630/315 = 714/315 - 714/315 simplified gives 34/15
- So, 12/45 + 70/35 = 34/15
In mixed form: 24/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+70/35 12/90+70/35 36/45+70/35 60/45+70/35 84/45+70/35