Add 20/12 and 28/10
1st number: 1 8/12, 2nd number: 2 8/10
20/12 + 28/10 is 67/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
20/12 = 20 × 5/12 × 5 = 100/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
28/10 = 28 × 6/10 × 6 = 168/60 - Add the two like fractions:
100/60 + 168/60 = 100 + 168/60 = 268/60 - 268/60 simplified gives 67/15
- So, 20/12 + 28/10 = 67/15
In mixed form: 47/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+28/10 20/12+56/10 20/24+28/10 20/12+28/20 60/12+28/10 20/12+84/10 20/36+28/10 20/12+28/30 20/60+28/10 20/12+28/50 20/84+28/10 20/12+28/70