Add 20/30 and 36/18
1st number: 20/30, 2nd number: 2 0/18
20/30 + 36/18 is 8/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
36/18 = 36 × 5/18 × 5 = 180/90 - Add the two like fractions:
60/90 + 180/90 = 60 + 180/90 = 240/90 - 240/90 simplified gives 8/3
- So, 20/30 + 36/18 = 8/3
In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+36/18 20/30+72/18 20/60+36/18 60/30+36/18 20/90+36/18 20/30+36/54 20/30+36/90