Add 5/60 and 12/9
1st number: 5/60, 2nd number: 1 3/9
5/60 + 12/9 is 17/12.
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,
5/60 = 5 × 3/60 × 3 = 15/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
12/9 = 12 × 20/9 × 20 = 240/180 - Add the two like fractions:
15/180 + 240/180 = 15 + 240/180 = 255/180 - 255/180 simplified gives 17/12
- So, 5/60 + 12/9 = 17/12
In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/60+12/9 5/60+24/9 5/60+12/18 15/60+12/9 5/60+36/9 5/60+12/27 25/60+12/9 5/60+60/9 5/60+12/45 35/60+12/9 5/60+84/9 5/60+12/63