Add 15/9 and 20/54
1st number: 1 6/9, 2nd number: 20/54
15/9 + 20/54 is 55/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 9 × 6 = 54,
15/9 = 15 × 6/9 × 6 = 90/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Add the two like fractions:
90/54 + 20/54 = 90 + 20/54 = 110/54 - 110/54 simplified gives 55/27
- So, 15/9 + 20/54 = 55/27
In mixed form: 21/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+20/54 15/9+40/54 15/18+20/54 45/9+20/54 15/9+60/54 15/27+20/54 75/9+20/54 15/45+20/54 15/63+20/54