Add 18/84 and 6/42
18/84 + 6/42 is 5/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
6/42 = 6 × 2/42 × 2 = 12/84 - Add the two like fractions:
18/84 + 12/84 = 18 + 12/84 = 30/84 - 30/84 simplified gives 5/14
- So, 18/84 + 6/42 = 5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+6/42 18/84+12/42 18/84+6/84 54/84+6/42 18/84+18/42 90/84+6/42 18/84+30/42