Add 3/18 and 35/20
1st number: 3/18, 2nd number: 1 15/20
3/18 + 35/20 is 23/12.
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,
3/18 = 3 × 10/18 × 10 = 30/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
35/20 = 35 × 9/20 × 9 = 315/180 - Add the two like fractions:
30/180 + 315/180 = 30 + 315/180 = 345/180 - 345/180 simplified gives 23/12
- So, 3/18 + 35/20 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+35/20 3/18+70/20 3/36+35/20 3/18+35/40 9/18+35/20 3/54+35/20 3/18+35/60 15/18+35/20 3/90+35/20 21/18+35/20