Add 60/20 and 81/30
1st number: 3 0/20, 2nd number: 2 21/30
60/20 + 81/30 is 57/10.
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,
60/20 = 60 × 3/20 × 3 = 180/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60 - Add the two like fractions:
180/60 + 162/60 = 180 + 162/60 = 342/60 - 342/60 simplified gives 57/10
- So, 60/20 + 81/30 = 57/10
In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+81/30 60/20+81/60 60/20+81/90