Add 12/3 and 81/10
1st number: 4 0/3, 2nd number: 8 1/10
12/3 + 81/10 is 121/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
12/3 = 12 × 10/3 × 10 = 120/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
81/10 = 81 × 3/10 × 3 = 243/30 - Add the two like fractions:
120/30 + 243/30 = 120 + 243/30 = 363/30 - 363/30 simplified gives 121/10
- So, 12/3 + 81/10 = 121/10
In mixed form: 121/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+81/10 12/6+81/10 12/3+81/20 36/3+81/10 12/9+81/10 12/3+81/30 60/3+81/10 12/15+81/10 12/3+81/50 84/3+81/10 12/21+81/10 12/3+81/70