Add 54/84 and 30/54
54/84 + 30/54 is 151/126.
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,
54/84 = 54 × 9/84 × 9 = 486/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
30/54 = 30 × 14/54 × 14 = 420/756 - Add the two like fractions:
486/756 + 420/756 = 486 + 420/756 = 906/756 - 906/756 simplified gives 151/126
- So, 54/84 + 30/54 = 151/126
In mixed form: 125/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+60/54 54/84+90/54