Add 60/15 and 21/9
1st number: 4 0/15, 2nd number: 2 3/9
60/15 + 21/9 is 19/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
60/15 = 60 × 3/15 × 3 = 180/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
21/9 = 21 × 5/9 × 5 = 105/45 - Add the two like fractions:
180/45 + 105/45 = 180 + 105/45 = 285/45 - 285/45 simplified gives 19/3
- So, 60/15 + 21/9 = 19/3
In mixed form: 61/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+42/9 60/30+21/9 60/15+21/18 60/15+63/9 60/45+21/9 60/15+21/27 60/75+21/9 60/15+21/45 60/15+21/63