Add 4/20 and 27/18
1st number: 4/20, 2nd number: 1 9/18
4/20 + 27/18 is 17/10.
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,
4/20 = 4 × 9/20 × 9 = 36/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
27/18 = 27 × 10/18 × 10 = 270/180 - Add the two like fractions:
36/180 + 270/180 = 36 + 270/180 = 306/180 - 306/180 simplified gives 17/10
- So, 4/20 + 27/18 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+27/18 4/20+54/18 4/40+27/18 4/20+27/36 12/20+27/18 4/20+81/18 4/60+27/18 4/20+27/54 4/20+27/90 28/20+27/18