Add 9/30 and 27/20
1st number: 9/30, 2nd number: 1 7/20
9/30 + 27/20 is 33/20.
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,
27/20 = 27 × 3/20 × 3 = 81/60 - Add the two like fractions:
18/60 + 81/60 = 18 + 81/60 = 99/60 - 99/60 simplified gives 33/20
- So, 9/30 + 27/20 = 33/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+27/20 9/30+54/20 9/60+27/20 9/30+27/40 27/30+27/20 9/30+81/20 9/90+27/20 9/30+27/60 45/30+27/20 63/30+27/20