Add 3/4 and 15/18
3/4 + 15/18 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
3/4 = 3 × 9/4 × 9 = 27/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Add the two like fractions:
27/36 + 30/36 = 27 + 30/36 = 57/36 - 57/36 simplified gives 19/12
- So, 3/4 + 15/18 = 19/12
In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4+15/18 3/4+30/18 3/8+15/18 3/4+15/36 9/4+15/18 3/4+45/18 3/12+15/18 3/4+15/54 15/4+15/18 3/4+75/18 3/20+15/18 3/4+15/90 21/4+15/18 3/28+15/18