Add 27/5 and 12/18
1st number: 5 2/5, 2nd number: 12/18
27/5 + 12/18 is 91/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
27/5 = 27 × 18/5 × 18 = 486/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Add the two like fractions:
486/90 + 60/90 = 486 + 60/90 = 546/90 - 546/90 simplified gives 91/15
- So, 27/5 + 12/18 = 91/15
In mixed form: 61/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5+12/18 27/5+24/18 27/10+12/18 27/5+12/36 81/5+12/18 27/5+36/18 27/15+12/18 27/5+12/54 27/5+60/18 27/25+12/18 27/5+12/90 27/5+84/18 27/35+12/18