Add 30/60 and 18/20
30/60 + 18/20 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Add the two like fractions:
30/60 + 54/60 = 30 + 54/60 = 84/60 - 84/60 simplified gives 7/5
- So, 30/60 + 18/20 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+36/20 30/60+18/40 90/60+18/20 30/60+54/20 30/60+18/60 30/60+90/20