Add 20/18 and 60/30
1st number: 1 2/18, 2nd number: 2 0/30
20/18 + 60/30 is 28/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
60/30 = 60 × 3/30 × 3 = 180/90 - Add the two like fractions:
100/90 + 180/90 = 100 + 180/90 = 280/90 - 280/90 simplified gives 28/9
- So, 20/18 + 60/30 = 28/9
In mixed form: 31/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+60/30 20/36+60/30 60/18+60/30 20/54+60/30 20/18+60/90 20/90+60/30