Add 20/54 and 15/18
20/54 + 15/18 is 65/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
15/18 = 15 × 3/18 × 3 = 45/54 - Add the two like fractions:
20/54 + 45/54 = 20 + 45/54 = 65/54 - So, 20/54 + 15/18 = 65/54
In mixed form: 111/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54+15/18 20/54+30/18 20/54+15/36 60/54+15/18 20/54+45/18 20/54+15/54 20/54+75/18 20/54+15/90