Add 45/81 and 40/54
45/81 + 40/54 is 35/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 54 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
45/81 = 45 × 2/81 × 2 = 90/162 - Likewise, for the 2nd fraction, since 54 × 3 = 162,
40/54 = 40 × 3/54 × 3 = 120/162 - Add the two like fractions:
90/162 + 120/162 = 90 + 120/162 = 210/162 - 210/162 simplified gives 35/27
- So, 45/81 + 40/54 = 35/27
In mixed form: 18/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/81+40/54 45/81+80/54