Add 18/2 and 2/81
1st number: 9 0/2, 2nd number: 2/81
18/2 + 2/81 is 731/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
18/2 = 18 × 81/2 × 81 = 1458/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
2/81 = 2 × 2/81 × 2 = 4/162 - Add the two like fractions:
1458/162 + 4/162 = 1458 + 4/162 = 1462/162 - 1462/162 simplified gives 731/81
- So, 18/2 + 2/81 = 731/81
In mixed form: 92/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2+2/81 18/2+4/81 18/4+2/81 54/2+2/81 18/2+6/81 18/6+2/81 90/2+2/81 18/2+10/81 18/10+2/81 18/2+14/81 18/14+2/81