Add 4/14 and 21/81
4/14 + 21/81 is 103/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
4/14 = 4 × 81/14 × 81 = 324/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
21/81 = 21 × 14/81 × 14 = 294/1134 - Add the two like fractions:
324/1134 + 294/1134 = 324 + 294/1134 = 618/1134 - 618/1134 simplified gives 103/189
- So, 4/14 + 21/81 = 103/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/14+21/81 4/14+42/81 4/28+21/81 12/14+21/81 4/14+63/81 4/42+21/81 20/14+21/81 4/70+21/81 28/14+21/81 4/98+21/81