Add 15/84 and 84/54
1st number: 15/84, 2nd number: 1 30/54
15/84 + 84/54 is 437/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
15/84 = 15 × 9/84 × 9 = 135/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
84/54 = 84 × 14/54 × 14 = 1176/756 - Add the two like fractions:
135/756 + 1176/756 = 135 + 1176/756 = 1311/756 - 1311/756 simplified gives 437/252
- So, 15/84 + 84/54 = 437/252
In mixed form: 1185/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+84/54 45/84+84/54 75/84+84/54