Add 15/60 and 20/9
1st number: 15/60, 2nd number: 2 2/9
15/60 + 20/9 is 89/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
15/60 = 15 × 3/60 × 3 = 45/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
20/9 = 20 × 20/9 × 20 = 400/180 - Add the two like fractions:
45/180 + 400/180 = 45 + 400/180 = 445/180 - 445/180 simplified gives 89/36
- So, 15/60 + 20/9 = 89/36
In mixed form: 217/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+20/9 15/60+40/9 15/60+20/18 45/60+20/9 15/60+60/9 15/60+20/27 75/60+20/9 15/60+20/45 15/60+20/63