Add 27/20 and 15/18
1st number: 1 7/20, 2nd number: 15/18
27/20 + 15/18 is 131/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
27/20 = 27 × 9/20 × 9 = 243/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
15/18 = 15 × 10/18 × 10 = 150/180 - Add the two like fractions:
243/180 + 150/180 = 243 + 150/180 = 393/180 - 393/180 simplified gives 131/60
- So, 27/20 + 15/18 = 131/60
In mixed form: 211/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+15/18 27/20+30/18 27/40+15/18 27/20+15/36 81/20+15/18 27/20+45/18 27/60+15/18 27/20+15/54 27/20+75/18 27/20+15/90