Add 27/15 and 80/18
1st number: 1 12/15, 2nd number: 4 8/18
27/15 + 80/18 is 281/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
27/15 = 27 × 6/15 × 6 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
80/18 = 80 × 5/18 × 5 = 400/90 - Add the two like fractions:
162/90 + 400/90 = 162 + 400/90 = 562/90 - 562/90 simplified gives 281/45
- So, 27/15 + 80/18 = 281/45
In mixed form: 611/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+80/18 27/30+80/18 27/15+80/36 81/15+80/18 27/45+80/18 27/15+80/54 27/75+80/18 27/15+80/90