Add 20/4 and 15/9
1st number: 5 0/4, 2nd number: 1 6/9
20/4 + 15/9 is 20/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
20/4 = 20 × 9/4 × 9 = 180/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
15/9 = 15 × 4/9 × 4 = 60/36 - Add the two like fractions:
180/36 + 60/36 = 180 + 60/36 = 240/36 - 240/36 simplified gives 20/3
- So, 20/4 + 15/9 = 20/3
In mixed form: 62/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+15/9 20/4+30/9 20/8+15/9 20/4+15/18 60/4+15/9 20/4+45/9 20/12+15/9 20/4+15/27 20/4+75/9 20/4+15/45 20/28+15/9 20/4+15/63