Add 45/6 and 81/18
1st number: 7 3/6, 2nd number: 4 9/18
45/6 + 81/18 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
45/6 = 45 × 3/6 × 3 = 135/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
81/18 = 81 × 1/18 × 1 = 81/18 - Add the two like fractions:
135/18 + 81/18 = 135 + 81/18 = 216/18 - 216/18 simplified gives 12/1
- So, 45/6 + 81/18 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6+81/18 45/12+81/18 45/6+81/36 45/18+81/18 45/6+81/54 45/30+81/18 45/6+81/90 45/42+81/18