Add 30/20 and 27/30
1st number: 1 10/20, 2nd number: 27/30
30/20 + 27/30 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
30/20 = 30 × 3/20 × 3 = 90/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
27/30 = 27 × 2/30 × 2 = 54/60 - Add the two like fractions:
90/60 + 54/60 = 90 + 54/60 = 144/60 - 144/60 simplified gives 12/5
- So, 30/20 + 27/30 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+27/30 30/20+54/30 30/40+27/30 30/20+27/60 90/20+27/30 30/20+81/30 30/60+27/30 30/20+27/90