Add 15/35 and 18/9
1st number: 15/35, 2nd number: 2 0/9
15/35 + 18/9 is 17/7.
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,
15/35 = 15 × 9/35 × 9 = 135/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
18/9 = 18 × 35/9 × 35 = 630/315 - Add the two like fractions:
135/315 + 630/315 = 135 + 630/315 = 765/315 - 765/315 simplified gives 17/7
- So, 15/35 + 18/9 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+18/9 15/35+36/9 15/70+18/9 45/35+18/9 15/35+54/9 15/35+18/27 75/35+18/9 15/35+90/9 15/35+18/45 15/35+18/63