Add 15/9 and 15/60
1st number: 1 6/9, 2nd number: 15/60
15/9 + 15/60 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
15/9 = 15 × 20/9 × 20 = 300/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
15/60 = 15 × 3/60 × 3 = 45/180 - Add the two like fractions:
300/180 + 45/180 = 300 + 45/180 = 345/180 - 345/180 simplified gives 23/12
- So, 15/9 + 15/60 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+15/60 15/9+30/60 15/18+15/60 45/9+15/60 15/9+45/60 15/27+15/60 75/9+15/60 15/9+75/60 15/45+15/60 15/63+15/60