Add 20/12 and 4/5
1st number: 1 8/12, 2nd number: 4/5
20/12 + 4/5 is 37/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 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 5 × 12 = 60,
4/5 = 4 × 12/5 × 12 = 48/60 - Add the two like fractions:
100/60 + 48/60 = 100 + 48/60 = 148/60 - 148/60 simplified gives 37/15
- So, 20/12 + 4/5 = 37/15
In mixed form: 27/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+4/5 20/12+8/5 20/24+4/5 20/12+4/10 60/12+4/5 20/12+12/5 20/36+4/5 20/12+4/15 20/12+20/5 20/60+4/5 20/12+4/25 20/12+28/5 20/84+4/5 20/12+4/35