Add 84/45 and 18/81
1st number: 1 39/45, 2nd number: 18/81
84/45 + 18/81 is 94/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
84/45 = 84 × 9/45 × 9 = 756/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
18/81 = 18 × 5/81 × 5 = 90/405 - Add the two like fractions:
756/405 + 90/405 = 756 + 90/405 = 846/405 - 846/405 simplified gives 94/45
- So, 84/45 + 18/81 = 94/45
In mixed form: 24/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+36/81 84/90+18/81 84/45+54/81 84/45+90/81