Add 20/5 and 27/12
1st number: 4 0/5, 2nd number: 2 3/12
20/5 + 27/12 is 25/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
20/5 = 20 × 12/5 × 12 = 240/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Add the two like fractions:
240/60 + 135/60 = 240 + 135/60 = 375/60 - 375/60 simplified gives 25/4
- So, 20/5 + 27/12 = 25/4
In mixed form: 61/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+27/12 20/5+54/12 20/10+27/12 20/5+27/24 60/5+27/12 20/5+81/12 20/15+27/12 20/5+27/36 20/25+27/12 20/5+27/60 20/35+27/12 20/5+27/84