Add 12/3 and 81/60
1st number: 4 0/3, 2nd number: 1 21/60
12/3 + 81/60 is 107/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
12/3 = 12 × 20/3 × 20 = 240/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Add the two like fractions:
240/60 + 81/60 = 240 + 81/60 = 321/60 - 321/60 simplified gives 107/20
- So, 12/3 + 81/60 = 107/20
In mixed form: 57/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+81/60 12/6+81/60 36/3+81/60 12/9+81/60 60/3+81/60 12/15+81/60 84/3+81/60 12/21+81/60