Add 30/84 and 54/27
1st number: 30/84, 2nd number: 2 0/27
30/84 + 54/27 is 33/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
30/84 = 30 × 9/84 × 9 = 270/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
54/27 = 54 × 28/27 × 28 = 1512/756 - Add the two like fractions:
270/756 + 1512/756 = 270 + 1512/756 = 1782/756 - 1782/756 simplified gives 33/14
- So, 30/84 + 54/27 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+54/27 90/84+54/27 30/84+54/81