Add 5/18 and 15/7
1st number: 5/18, 2nd number: 2 1/7
5/18 + 15/7 is 305/126.
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,
5/18 = 5 × 7/18 × 7 = 35/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
15/7 = 15 × 18/7 × 18 = 270/126 - Add the two like fractions:
35/126 + 270/126 = 35 + 270/126 = 305/126 - So, 5/18 + 15/7 = 305/126
In mixed form: 253/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+15/7 5/18+30/7 5/36+15/7 5/18+15/14 15/18+15/7 5/18+45/7 5/54+15/7 5/18+15/21 25/18+15/7 5/18+75/7 5/90+15/7 5/18+15/35 35/18+15/7 5/18+15/49