Add 84/5 and 20/12
1st number: 16 4/5, 2nd number: 1 8/12
84/5 + 20/12 is 277/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
84/5 = 84 × 12/5 × 12 = 1008/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
20/12 = 20 × 5/12 × 5 = 100/60 - Add the two like fractions:
1008/60 + 100/60 = 1008 + 100/60 = 1108/60 - 1108/60 simplified gives 277/15
- So, 84/5 + 20/12 = 277/15
In mixed form: 187/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+40/12 84/10+20/12 84/5+20/24 84/5+60/12 84/15+20/12 84/5+20/36 84/25+20/12 84/5+20/60 84/35+20/12 84/5+20/84