Add 20/35 and 9/18
20/35 + 9/18 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
20/35 = 20 × 18/35 × 18 = 360/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
9/18 = 9 × 35/18 × 35 = 315/630 - Add the two like fractions:
360/630 + 315/630 = 360 + 315/630 = 675/630 - 675/630 simplified gives 15/14
- So, 20/35 + 9/18 = 15/14
In mixed form: 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+9/18 20/70+9/18 20/35+9/36 60/35+9/18 20/35+27/18 20/35+9/54 20/35+45/18 20/35+9/90 20/35+63/18