Add 4/6 and 90/81
1st number: 4/6, 2nd number: 1 9/81
4/6 + 90/81 is 16/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
4/6 = 4 × 27/6 × 27 = 108/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162 - Add the two like fractions:
108/162 + 180/162 = 108 + 180/162 = 288/162 - 288/162 simplified gives 16/9
- So, 4/6 + 90/81 = 16/9
In mixed form: 17/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/6+90/81 4/12+90/81 12/6+90/81 4/18+90/81 20/6+90/81 4/30+90/81 28/6+90/81 4/42+90/81