Add 18/84 and 15/3
1st number: 18/84, 2nd number: 5 0/3
18/84 + 15/3 is 73/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
15/3 = 15 × 28/3 × 28 = 420/84 - Add the two like fractions:
18/84 + 420/84 = 18 + 420/84 = 438/84 - 438/84 simplified gives 73/14
- So, 18/84 + 15/3 = 73/14
In mixed form: 53/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+15/3 18/84+30/3 18/84+15/6 54/84+15/3 18/84+45/3 18/84+15/9 90/84+15/3 18/84+75/3 18/84+15/21