Add 72/60 and 27/90
1st number: 1 12/60, 2nd number: 27/90
72/60 + 27/90 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
72/60 = 72 × 3/60 × 3 = 216/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
27/90 = 27 × 2/90 × 2 = 54/180 - Add the two like fractions:
216/180 + 54/180 = 216 + 54/180 = 270/180 - 270/180 simplified gives 3/2
- So, 72/60 + 27/90 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+54/90 72/60+81/90