Add 20/45 and 6/9
20/45 + 6/9 is 10/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
20/45 = 20 × 1/45 × 1 = 20/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
6/9 = 6 × 5/9 × 5 = 30/45 - Add the two like fractions:
20/45 + 30/45 = 20 + 30/45 = 50/45 - 50/45 simplified gives 10/9
- So, 20/45 + 6/9 = 10/9
In mixed form: 11/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+6/9 20/45+12/9 20/90+6/9 20/45+6/18 60/45+6/9 20/45+18/9 20/45+6/27 20/45+30/9 20/45+6/45 20/45+42/9 20/45+6/63