Add 84/15 and 36/18
1st number: 5 9/15, 2nd number: 2 0/18
84/15 + 36/18 is 38/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
84/15 = 84 × 6/15 × 6 = 504/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
36/18 = 36 × 5/18 × 5 = 180/90 - Add the two like fractions:
504/90 + 180/90 = 504 + 180/90 = 684/90 - 684/90 simplified gives 38/5
- So, 84/15 + 36/18 = 38/5
In mixed form: 73/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+72/18 84/30+36/18 84/45+36/18 84/15+36/54 84/75+36/18 84/15+36/90