Add 45/2 and 81/18
1st number: 22 1/2, 2nd number: 4 9/18
45/2 + 81/18 is 27/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
45/2 = 45 × 9/2 × 9 = 405/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
81/18 = 81 × 1/18 × 1 = 81/18 - Add the two like fractions:
405/18 + 81/18 = 405 + 81/18 = 486/18 - 486/18 simplified gives 27/1
- So, 45/2 + 81/18 = 27/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+81/18 45/4+81/18 45/2+81/36 45/6+81/18 45/2+81/54 45/10+81/18 45/2+81/90 45/14+81/18