Add 9/30 and 18/20
9/30 + 18/20 is 6/5.
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,
9/30 = 9 × 2/30 × 2 = 18/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Add the two like fractions:
18/60 + 54/60 = 18 + 54/60 = 72/60 - 72/60 simplified gives 6/5
- So, 9/30 + 18/20 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+18/20 9/30+36/20 9/60+18/20 9/30+18/40 27/30+18/20 9/30+54/20 9/90+18/20 9/30+18/60 45/30+18/20 9/30+90/20 63/30+18/20