Add 84/3 and 12/20
1st number: 28 0/3, 2nd number: 12/20
84/3 + 12/20 is 143/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
84/3 = 84 × 20/3 × 20 = 1680/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60 - Add the two like fractions:
1680/60 + 36/60 = 1680 + 36/60 = 1716/60 - 1716/60 simplified gives 143/5
- So, 84/3 + 12/20 = 143/5
In mixed form: 283/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3+24/20 84/6+12/20 84/3+12/40 84/3+36/20 84/9+12/20 84/3+12/60 84/3+60/20 84/15+12/20 84/3+84/20 84/21+12/20