Add 10/18 and 75/81
10/18 + 75/81 is 40/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
10/18 = 10 × 9/18 × 9 = 90/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
75/81 = 75 × 2/81 × 2 = 150/162 - Add the two like fractions:
90/162 + 150/162 = 90 + 150/162 = 240/162 - 240/162 simplified gives 40/27
- So, 10/18 + 75/81 = 40/27
In mixed form: 113/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+75/81 10/36+75/81 30/18+75/81 10/54+75/81 50/18+75/81 10/90+75/81 70/18+75/81