Add 15/54 and 7/9
15/54 + 7/9 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
15/54 = 15 × 1/54 × 1 = 15/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
7/9 = 7 × 6/9 × 6 = 42/54 - Add the two like fractions:
15/54 + 42/54 = 15 + 42/54 = 57/54 - 57/54 simplified gives 19/18
- So, 15/54 + 7/9 = 19/18
In mixed form: 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54+7/9 15/54+14/9 15/54+7/18 45/54+7/9 15/54+21/9 15/54+7/27 75/54+7/9 15/54+35/9 15/54+7/45 15/54+49/9 15/54+7/63