Add 15/36 and 90/18
1st number: 15/36, 2nd number: 5 0/18
15/36 + 90/18 is 65/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
15/36 = 15 × 1/36 × 1 = 15/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
90/18 = 90 × 2/18 × 2 = 180/36 - Add the two like fractions:
15/36 + 180/36 = 15 + 180/36 = 195/36 - 195/36 simplified gives 65/12
- So, 15/36 + 90/18 = 65/12
In mixed form: 55/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36+90/18 15/72+90/18 15/36+90/36 45/36+90/18 15/36+90/54 75/36+90/18