Add 2/4 and 70/81
2/4 + 70/81 is 221/162.
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,
70/81 = 70 × 4/81 × 4 = 280/324 - Add the two like fractions:
162/324 + 280/324 = 162 + 280/324 = 442/324 - 442/324 simplified gives 221/162
- So, 2/4 + 70/81 = 221/162
In mixed form: 159/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8+70/81 6/4+70/81 2/12+70/81 10/4+70/81 2/20+70/81 14/4+70/81 2/28+70/81