Add 30/60 and 20/18
1st number: 30/60, 2nd number: 1 2/18
30/60 + 20/18 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
30/60 = 30 × 3/60 × 3 = 90/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
20/18 = 20 × 10/18 × 10 = 200/180 - Add the two like fractions:
90/180 + 200/180 = 90 + 200/180 = 290/180 - 290/180 simplified gives 29/18
- So, 30/60 + 20/18 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+40/18 30/60+20/36 90/60+20/18 30/60+60/18 30/60+20/54 30/60+20/90