Add 27/18 and 5/20
1st number: 1 9/18, 2nd number: 5/20
27/18 + 5/20 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
27/18 = 27 × 10/18 × 10 = 270/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Add the two like fractions:
270/180 + 45/180 = 270 + 45/180 = 315/180 - 315/180 simplified gives 7/4
- So, 27/18 + 5/20 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+5/20 27/18+10/20 27/36+5/20 27/18+5/40 81/18+5/20 27/18+15/20 27/54+5/20 27/18+5/60 27/18+25/20 27/90+5/20 27/18+35/20