Add 60/9 and 21/4
1st number: 6 6/9, 2nd number: 5 1/4
60/9 + 21/4 is 143/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
60/9 = 60 × 4/9 × 4 = 240/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
21/4 = 21 × 9/4 × 9 = 189/36 - Add the two like fractions:
240/36 + 189/36 = 240 + 189/36 = 429/36 - 429/36 simplified gives 143/12
- So, 60/9 + 21/4 = 143/12
In mixed form: 1111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+42/4 60/18+21/4 60/9+21/8 60/9+63/4 60/27+21/4 60/9+21/12 60/45+21/4 60/9+21/20 60/63+21/4 60/9+21/28