Add 4/21 and 14/81
4/21 + 14/81 is 206/567.
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,
4/21 = 4 × 27/21 × 27 = 108/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
14/81 = 14 × 7/81 × 7 = 98/567 - Add the two like fractions:
108/567 + 98/567 = 108 + 98/567 = 206/567 - So, 4/21 + 14/81 = 206/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+14/81 4/21+28/81 4/42+14/81 12/21+14/81 4/21+42/81 4/63+14/81 20/21+14/81 4/21+70/81 28/21+14/81 4/21+98/81