Add 20/35 and 18/9
1st number: 20/35, 2nd number: 2 0/9
20/35 + 18/9 is 18/7.
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,
20/35 = 20 × 9/35 × 9 = 180/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
18/9 = 18 × 35/9 × 35 = 630/315 - Add the two like fractions:
180/315 + 630/315 = 180 + 630/315 = 810/315 - 810/315 simplified gives 18/7
- So, 20/35 + 18/9 = 18/7
In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+18/9 20/35+36/9 20/70+18/9 60/35+18/9 20/35+54/9 20/35+18/27 20/35+90/9 20/35+18/45 20/35+18/63