Add 18/9 and 75/60
1st number: 2 0/9, 2nd number: 1 15/60
18/9 + 75/60 is 13/4.
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,
18/9 = 18 × 20/9 × 20 = 360/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
75/60 = 75 × 3/60 × 3 = 225/180 - Add the two like fractions:
360/180 + 225/180 = 360 + 225/180 = 585/180 - 585/180 simplified gives 13/4
- So, 18/9 + 75/60 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+75/60 54/9+75/60 18/27+75/60 90/9+75/60 18/45+75/60 18/63+75/60