Add 50/84 and 21/27
50/84 + 21/27 is 173/126.
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,
50/84 = 50 × 9/84 × 9 = 450/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
21/27 = 21 × 28/27 × 28 = 588/756 - Add the two like fractions:
450/756 + 588/756 = 450 + 588/756 = 1038/756 - 1038/756 simplified gives 173/126
- So, 50/84 + 21/27 = 173/126
In mixed form: 147/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+42/27 50/84+21/54 50/84+63/27 50/84+21/81