Add 5/20 and 20/18
1st number: 5/20, 2nd number: 1 2/18
5/20 + 20/18 is 49/36.
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,
5/20 = 5 × 9/20 × 9 = 45/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
20/18 = 20 × 10/18 × 10 = 200/180 - Add the two like fractions:
45/180 + 200/180 = 45 + 200/180 = 245/180 - 245/180 simplified gives 49/36
- So, 5/20 + 20/18 = 49/36
In mixed form: 113/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+20/18 5/20+40/18 5/40+20/18 5/20+20/36 15/20+20/18 5/20+60/18 5/60+20/18 5/20+20/54 25/20+20/18 5/20+20/90 35/20+20/18