Add 80/9 and 21/84
1st number: 8 8/9, 2nd number: 21/84
80/9 + 21/84 is 329/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
80/9 = 80 × 28/9 × 28 = 2240/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
21/84 = 21 × 3/84 × 3 = 63/252 - Add the two like fractions:
2240/252 + 63/252 = 2240 + 63/252 = 2303/252 - 2303/252 simplified gives 329/36
- So, 80/9 + 21/84 = 329/36
In mixed form: 95/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9+42/84 80/18+21/84 80/9+63/84 80/27+21/84 80/45+21/84 80/63+21/84