Add 60/5 and 21/12
1st number: 12 0/5, 2nd number: 1 9/12
60/5 + 21/12 is 55/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
60/5 = 60 × 12/5 × 12 = 720/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Add the two like fractions:
720/60 + 105/60 = 720 + 105/60 = 825/60 - 825/60 simplified gives 55/4
- So, 60/5 + 21/12 = 55/4
In mixed form: 133/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5+42/12 60/10+21/12 60/5+21/24 60/5+63/12 60/15+21/12 60/5+21/36 60/25+21/12 60/5+21/60 60/35+21/12 60/5+21/84