Add 35/21 and 3/18
1st number: 1 14/21, 2nd number: 3/18
35/21 + 3/18 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
35/21 = 35 × 6/21 × 6 = 210/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Add the two like fractions:
210/126 + 21/126 = 210 + 21/126 = 231/126 - 231/126 simplified gives 11/6
- So, 35/21 + 3/18 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+3/18 35/21+6/18 35/42+3/18 35/21+3/36 35/21+9/18 35/63+3/18 35/21+3/54 35/21+15/18 35/21+3/90 35/21+21/18