Add 8/20 and 35/18
1st number: 8/20, 2nd number: 1 17/18
8/20 + 35/18 is 211/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
35/18 = 35 × 10/18 × 10 = 350/180 - Add the two like fractions:
72/180 + 350/180 = 72 + 350/180 = 422/180 - 422/180 simplified gives 211/90
- So, 8/20 + 35/18 = 211/90
In mixed form: 231/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+35/18 8/20+70/18 8/40+35/18 8/20+35/36 24/20+35/18 8/60+35/18 8/20+35/54 40/20+35/18 8/20+35/90 56/20+35/18