Add 15/18 and 18/4
1st number: 15/18, 2nd number: 4 2/4
15/18 + 18/4 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Add the two like fractions:
30/36 + 162/36 = 30 + 162/36 = 192/36 - 192/36 simplified gives 16/3
- So, 15/18 + 18/4 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+18/4 15/18+36/4 15/36+18/4 15/18+18/8 45/18+18/4 15/18+54/4 15/54+18/4 15/18+18/12 75/18+18/4 15/18+90/4 15/90+18/4 15/18+18/20 15/18+18/28