Add 45/18 and 6/20
1st number: 2 9/18, 2nd number: 6/20
45/18 + 6/20 is 14/5.
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,
45/18 = 45 × 10/18 × 10 = 450/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Add the two like fractions:
450/180 + 54/180 = 450 + 54/180 = 504/180 - 504/180 simplified gives 14/5
- So, 45/18 + 6/20 = 14/5
In mixed form: 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+6/20 45/18+12/20 45/36+6/20 45/18+6/40 45/18+18/20 45/54+6/20 45/18+6/60 45/18+30/20 45/90+6/20 45/18+42/20