Add 84/15 and 84/18
1st number: 5 9/15, 2nd number: 4 12/18
84/15 + 84/18 is 154/15.
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,
84/18 = 84 × 5/18 × 5 = 420/90 - Add the two like fractions:
504/90 + 420/90 = 504 + 420/90 = 924/90 - 924/90 simplified gives 154/15
- So, 84/15 + 84/18 = 154/15
In mixed form: 104/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+84/18 84/15+84/36 84/45+84/18 84/15+84/54 84/75+84/18 84/15+84/90