Add 18/21 and 35/6
1st number: 18/21, 2nd number: 5 5/6
18/21 + 35/6 is 281/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
35/6 = 35 × 7/6 × 7 = 245/42 - Add the two like fractions:
36/42 + 245/42 = 36 + 245/42 = 281/42 - So, 18/21 + 35/6 = 281/42
In mixed form: 629/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21+35/6 18/21+70/6 18/42+35/6 18/21+35/12 54/21+35/6 18/63+35/6 18/21+35/18 90/21+35/6 18/21+35/30 18/21+35/42