Add 27/60 and 72/18
1st number: 27/60, 2nd number: 4 0/18
27/60 + 72/18 is 89/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
27/60 = 27 × 3/60 × 3 = 81/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
72/18 = 72 × 10/18 × 10 = 720/180 - Add the two like fractions:
81/180 + 720/180 = 81 + 720/180 = 801/180 - 801/180 simplified gives 89/20
- So, 27/60 + 72/18 = 89/20
In mixed form: 49/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+72/18 27/60+72/36 81/60+72/18 27/60+72/54 27/60+72/90