Add 6/18 and 5/7
6/18 + 5/7 is 22/21.
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,
6/18 = 6 × 7/18 × 7 = 42/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
5/7 = 5 × 18/7 × 18 = 90/126 - Add the two like fractions:
42/126 + 90/126 = 42 + 90/126 = 132/126 - 132/126 simplified gives 22/21
- So, 6/18 + 5/7 = 22/21
In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18+5/7 6/18+10/7 6/36+5/7 6/18+5/14 6/18+15/7 6/54+5/7 6/18+5/21 30/18+5/7 6/18+25/7 6/90+5/7 6/18+5/35 42/18+5/7 6/18+35/7 6/18+5/49