Add 20/84 and 80/27
1st number: 20/84, 2nd number: 2 26/27
20/84 + 80/27 is 605/189.
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,
20/84 = 20 × 9/84 × 9 = 180/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
80/27 = 80 × 28/27 × 28 = 2240/756 - Add the two like fractions:
180/756 + 2240/756 = 180 + 2240/756 = 2420/756 - 2420/756 simplified gives 605/189
- So, 20/84 + 80/27 = 605/189
In mixed form: 338/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+80/27 20/84+80/54 60/84+80/27 20/84+80/81