Add 21/3 and 60/12
1st number: 7 0/3, 2nd number: 5 0/12
21/3 + 60/12 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
21/3 = 21 × 4/3 × 4 = 84/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
60/12 = 60 × 1/12 × 1 = 60/12 - Add the two like fractions:
84/12 + 60/12 = 84 + 60/12 = 144/12 - 144/12 simplified gives 12/1
- So, 21/3 + 60/12 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+60/12 21/6+60/12 21/3+60/24 63/3+60/12 21/9+60/12 21/3+60/36 21/15+60/12 21/3+60/84