Add 35/21 and 18/24
1st number: 1 14/21, 2nd number: 18/24
35/21 + 18/24 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 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 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Add the two like fractions:
280/168 + 126/168 = 280 + 126/168 = 406/168 - 406/168 simplified gives 29/12
- So, 35/21 + 18/24 = 29/12
In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+18/24 35/21+36/24 35/42+18/24 35/21+18/48 35/21+54/24 35/63+18/24 35/21+18/72 35/21+90/24