Add 10/18 and 8/81
10/18 + 8/81 is 53/81.
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,
8/81 = 8 × 2/81 × 2 = 16/162 - Add the two like fractions:
90/162 + 16/162 = 90 + 16/162 = 106/162 - 106/162 simplified gives 53/81
- So, 10/18 + 8/81 = 53/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+8/81 10/18+16/81 10/36+8/81 30/18+8/81 10/18+24/81 10/54+8/81 50/18+8/81 10/18+40/81 10/90+8/81 70/18+8/81 10/18+56/81