Add 20/30 and 81/20
1st number: 20/30, 2nd number: 4 1/20
20/30 + 81/20 is 283/60.
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,
20/30 = 20 × 2/30 × 2 = 40/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Add the two like fractions:
40/60 + 243/60 = 40 + 243/60 = 283/60 - So, 20/30 + 81/20 = 283/60
In mixed form: 443/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+81/20 20/60+81/20 20/30+81/40 60/30+81/20 20/90+81/20 20/30+81/60