Add 70/3 and 28/20
1st number: 23 1/3, 2nd number: 1 8/20
70/3 + 28/20 is 371/15.
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,
70/3 = 70 × 20/3 × 20 = 1400/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
28/20 = 28 × 3/20 × 3 = 84/60 - Add the two like fractions:
1400/60 + 84/60 = 1400 + 84/60 = 1484/60 - 1484/60 simplified gives 371/15
- So, 70/3 + 28/20 = 371/15
In mixed form: 2411/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/3+56/20 70/6+28/20 70/3+28/40 70/3+84/20 70/9+28/20 70/3+28/60 70/15+28/20 70/21+28/20