Add 12/5 and 20/84
1st number: 2 2/5, 2nd number: 20/84
12/5 + 20/84 is 277/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
12/5 = 12 × 84/5 × 84 = 1008/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
1008/420 + 100/420 = 1008 + 100/420 = 1108/420 - 1108/420 simplified gives 277/105
- So, 12/5 + 20/84 = 277/105
In mixed form: 267/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+20/84 12/5+40/84 12/10+20/84 36/5+20/84 12/5+60/84 12/15+20/84 60/5+20/84 12/25+20/84 84/5+20/84 12/35+20/84