Add 2/4 and 30/81
2/4 + 30/81 is 47/54.
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,
30/81 = 30 × 4/81 × 4 = 120/324 - Add the two like fractions:
162/324 + 120/324 = 162 + 120/324 = 282/324 - 282/324 simplified gives 47/54
- So, 2/4 + 30/81 = 47/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4+60/81 2/8+30/81 6/4+30/81 2/4+90/81 2/12+30/81 10/4+30/81 2/20+30/81 14/4+30/81 2/28+30/81