Add 3/7 and 3/18
3/7 + 3/18 is 25/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
3/7 = 3 × 18/7 × 18 = 54/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Add the two like fractions:
54/126 + 21/126 = 54 + 21/126 = 75/126 - 75/126 simplified gives 25/42
- So, 3/7 + 3/18 = 25/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/7+3/18 3/7+6/18 3/14+3/18 3/7+3/36 9/7+3/18 3/7+9/18 3/21+3/18 3/7+3/54 15/7+3/18 3/7+15/18 3/35+3/18 3/7+3/90 21/7+3/18 3/7+21/18 3/49+3/18