Add 20/45 and 35/9
1st number: 20/45, 2nd number: 3 8/9
20/45 + 35/9 is 13/3.
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,
35/9 = 35 × 5/9 × 5 = 175/45 - Add the two like fractions:
20/45 + 175/45 = 20 + 175/45 = 195/45 - 195/45 simplified gives 13/3
- So, 20/45 + 35/9 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+35/9 20/45+70/9 20/90+35/9 20/45+35/18 60/45+35/9 20/45+35/27 20/45+35/45 20/45+35/63