Add 84/5 and 12/80
1st number: 16 4/5, 2nd number: 12/80
84/5 + 12/80 is 339/20.
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,
84/5 = 84 × 16/5 × 16 = 1344/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Add the two like fractions:
1344/80 + 12/80 = 1344 + 12/80 = 1356/80 - 1356/80 simplified gives 339/20
- So, 84/5 + 12/80 = 339/20
In mixed form: 1619/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+24/80 84/10+12/80 84/5+36/80 84/15+12/80 84/5+60/80 84/25+12/80 84/5+84/80 84/35+12/80