Add 21/5 and 1/80
1st number: 4 1/5, 2nd number: 1/80
21/5 + 1/80 is 337/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
1/80 = 1 × 1/80 × 1 = 1/80 - Add the two like fractions:
336/80 + 1/80 = 336 + 1/80 = 337/80 - So, 21/5 + 1/80 = 337/80
In mixed form: 417/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+1/80 21/5+2/80 21/10+1/80 63/5+1/80 21/5+3/80 21/15+1/80 21/5+5/80 21/25+1/80 21/5+7/80 21/35+1/80