Add 35/21 and 2/81
1st number: 1 14/21, 2nd number: 2/81
35/21 + 2/81 is 137/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
35/21 = 35 × 27/21 × 27 = 945/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
2/81 = 2 × 7/81 × 7 = 14/567 - Add the two like fractions:
945/567 + 14/567 = 945 + 14/567 = 959/567 - 959/567 simplified gives 137/81
- So, 35/21 + 2/81 = 137/81
In mixed form: 156/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+2/81 35/21+4/81 35/42+2/81 35/21+6/81 35/63+2/81 35/21+10/81 35/21+14/81