Add 40/2 and 5/81
1st number: 20 0/2, 2nd number: 5/81
40/2 + 5/81 is 1625/81.
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,
40/2 = 40 × 81/2 × 81 = 3240/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
5/81 = 5 × 2/81 × 2 = 10/162 - Add the two like fractions:
3240/162 + 10/162 = 3240 + 10/162 = 3250/162 - 3250/162 simplified gives 1625/81
- So, 40/2 + 5/81 = 1625/81
In mixed form: 205/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2+5/81 40/2+10/81 40/4+5/81 40/2+15/81 40/6+5/81 40/2+25/81 40/10+5/81 40/2+35/81 40/14+5/81