Add 30/3 and 81/20
1st number: 10 0/3, 2nd number: 4 1/20
30/3 + 81/20 is 281/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
30/3 = 30 × 20/3 × 20 = 600/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Add the two like fractions:
600/60 + 243/60 = 600 + 243/60 = 843/60 - 843/60 simplified gives 281/20
- So, 30/3 + 81/20 = 281/20
In mixed form: 141/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3+81/20 30/6+81/20 30/3+81/40 90/3+81/20 30/9+81/20 30/3+81/60 30/15+81/20 30/21+81/20