Add 8/18 and 3/7
8/18 + 3/7 is 55/63.
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,
8/18 = 8 × 7/18 × 7 = 56/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
3/7 = 3 × 18/7 × 18 = 54/126 - Add the two like fractions:
56/126 + 54/126 = 56 + 54/126 = 110/126 - 110/126 simplified gives 55/63
- So, 8/18 + 3/7 = 55/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+3/7 8/18+6/7 8/36+3/7 8/18+3/14 24/18+3/7 8/18+9/7 8/54+3/7 8/18+3/21 40/18+3/7 8/18+15/7 8/90+3/7 8/18+3/35 56/18+3/7 8/18+21/7 8/18+3/49