Add 15/28 and 84/18
1st number: 15/28, 2nd number: 4 12/18
15/28 + 84/18 is 437/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
15/28 = 15 × 9/28 × 9 = 135/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
84/18 = 84 × 14/18 × 14 = 1176/252 - Add the two like fractions:
135/252 + 1176/252 = 135 + 1176/252 = 1311/252 - 1311/252 simplified gives 437/84
- So, 15/28 + 84/18 = 437/84
In mixed form: 517/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+84/18 15/56+84/18 15/28+84/36 45/28+84/18 15/84+84/18 15/28+84/54 75/28+84/18 15/28+84/90