Add 8/84 and 80/5
1st number: 8/84, 2nd number: 16 0/5
8/84 + 80/5 is 338/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
80/5 = 80 × 84/5 × 84 = 6720/420 - Add the two like fractions:
40/420 + 6720/420 = 40 + 6720/420 = 6760/420 - 6760/420 simplified gives 338/21
- So, 8/84 + 80/5 = 338/21
In mixed form: 162/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84+80/5 8/84+80/10 24/84+80/5 8/84+80/15 40/84+80/5 8/84+80/25 56/84+80/5 8/84+80/35