Add 84/12 and 6/20
1st number: 7 0/12, 2nd number: 6/20
84/12 + 6/20 is 73/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
6/20 = 6 × 3/20 × 3 = 18/60 - Add the two like fractions:
420/60 + 18/60 = 420 + 18/60 = 438/60 - 438/60 simplified gives 73/10
- So, 84/12 + 6/20 = 73/10
In mixed form: 73/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+12/20 84/24+6/20 84/12+6/40 84/12+18/20 84/36+6/20 84/12+6/60 84/12+30/20 84/60+6/20 84/12+42/20