Add 80/18 and 35/20
1st number: 4 8/18, 2nd number: 1 15/20
80/18 + 35/20 is 223/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
80/18 = 80 × 10/18 × 10 = 800/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
35/20 = 35 × 9/20 × 9 = 315/180 - Add the two like fractions:
800/180 + 315/180 = 800 + 315/180 = 1115/180 - 1115/180 simplified gives 223/36
- So, 80/18 + 35/20 = 223/36
In mixed form: 67/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+70/20 80/36+35/20 80/18+35/40 80/54+35/20 80/18+35/60 80/90+35/20