Add 50/80 and 21/27
50/80 + 21/27 is 101/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
50/80 = 50 × 27/80 × 27 = 1350/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
21/27 = 21 × 80/27 × 80 = 1680/2160 - Add the two like fractions:
1350/2160 + 1680/2160 = 1350 + 1680/2160 = 3030/2160 - 3030/2160 simplified gives 101/72
- So, 50/80 + 21/27 = 101/72
In mixed form: 129/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+42/27 50/80+21/54 50/80+63/27 50/80+21/81