Add 2/4 and 5/81
2/4 + 5/81 is 91/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
2/4 = 2 × 81/4 × 81 = 162/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
5/81 = 5 × 4/81 × 4 = 20/324 - Add the two like fractions:
162/324 + 20/324 = 162 + 20/324 = 182/324 - 182/324 simplified gives 91/162
- So, 2/4 + 5/81 = 91/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4+10/81 2/8+5/81 6/4+5/81 2/4+15/81 2/12+5/81 10/4+5/81 2/4+25/81 2/20+5/81 14/4+5/81 2/4+35/81 2/28+5/81