Add 35/30 and 18/20
1st number: 1 5/30, 2nd number: 18/20
35/30 + 18/20 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
35/30 = 35 × 2/30 × 2 = 70/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Add the two like fractions:
70/60 + 54/60 = 70 + 54/60 = 124/60 - 124/60 simplified gives 31/15
- So, 35/30 + 18/20 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+18/20 35/30+36/20 35/60+18/20 35/30+18/40 35/30+54/20 35/90+18/20 35/30+18/60 35/30+90/20