Add 40/18 and 21/6
1st number: 2 4/18, 2nd number: 3 3/6
40/18 + 21/6 is 103/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 6 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
40/18 = 40 × 1/18 × 1 = 40/18 - Likewise, for the 2nd fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Add the two like fractions:
40/18 + 63/18 = 40 + 63/18 = 103/18 - So, 40/18 + 21/6 = 103/18
In mixed form: 513/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+21/6 40/18+42/6 40/36+21/6 40/18+21/12 40/18+63/6 40/54+21/6 40/18+21/18 40/90+21/6 40/18+21/30 40/18+21/42