Add 21/20 and 80/6
1st number: 1 1/20, 2nd number: 13 2/6
21/20 + 80/6 is 863/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Likewise, for the 2nd fraction, since 6 × 10 = 60,
80/6 = 80 × 10/6 × 10 = 800/60 - Add the two like fractions:
63/60 + 800/60 = 63 + 800/60 = 863/60 - So, 21/20 + 80/6 = 863/60
In mixed form: 1423/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20+80/6 21/40+80/6 21/20+80/12 63/20+80/6 21/60+80/6 21/20+80/18 21/20+80/30 21/20+80/42