Add 27/18 and 80/7
1st number: 1 9/18, 2nd number: 11 3/7
27/18 + 80/7 is 181/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
27/18 = 27 × 7/18 × 7 = 189/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
80/7 = 80 × 18/7 × 18 = 1440/126 - Add the two like fractions:
189/126 + 1440/126 = 189 + 1440/126 = 1629/126 - 1629/126 simplified gives 181/14
- So, 27/18 + 80/7 = 181/14
In mixed form: 1213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+80/7 27/36+80/7 27/18+80/14 81/18+80/7 27/54+80/7 27/18+80/21 27/90+80/7 27/18+80/35 27/18+80/49