Add 35/21 and 9/8
1st number: 1 14/21, 2nd number: 1 1/8
35/21 + 9/8 is 67/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
35/21 = 35 × 8/21 × 8 = 280/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
9/8 = 9 × 21/8 × 21 = 189/168 - Add the two like fractions:
280/168 + 189/168 = 280 + 189/168 = 469/168 - 469/168 simplified gives 67/24
- So, 35/21 + 9/8 = 67/24
In mixed form: 219/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+9/8 35/21+18/8 35/42+9/8 35/21+9/16 35/21+27/8 35/63+9/8 35/21+9/24 35/21+45/8 35/21+9/40 35/21+63/8 35/21+9/56