Add 3/18 and 28/42
3/18 + 28/42 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
28/42 = 28 × 3/42 × 3 = 84/126 - Add the two like fractions:
21/126 + 84/126 = 21 + 84/126 = 105/126 - 105/126 simplified gives 5/6
- So, 3/18 + 28/42 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+28/42 3/18+56/42 3/36+28/42 3/18+28/84 9/18+28/42 3/18+84/42 3/54+28/42 15/18+28/42 3/90+28/42 21/18+28/42