Add 45/2 and 7/81
1st number: 22 1/2, 2nd number: 7/81
45/2 + 7/81 is 3659/162.
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,
45/2 = 45 × 81/2 × 81 = 3645/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
7/81 = 7 × 2/81 × 2 = 14/162 - Add the two like fractions:
3645/162 + 14/162 = 3645 + 14/162 = 3659/162 - So, 45/2 + 7/81 = 3659/162
In mixed form: 2295/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+7/81 45/2+14/81 45/4+7/81 45/2+21/81 45/6+7/81 45/2+35/81 45/10+7/81 45/2+49/81 45/14+7/81