Add 20/18 and 5/20
1st number: 1 2/18, 2nd number: 5/20
20/18 + 5/20 is 49/36.
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,
20/18 = 20 × 10/18 × 10 = 200/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Add the two like fractions:
200/180 + 45/180 = 200 + 45/180 = 245/180 - 245/180 simplified gives 49/36
- So, 20/18 + 5/20 = 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: 40/18+5/20 20/18+10/20 20/36+5/20 20/18+5/40 60/18+5/20 20/18+15/20 20/54+5/20 20/18+5/60 20/18+25/20 20/90+5/20 20/18+35/20