Add 21/6 and 40/12
1st number: 3 3/6, 2nd number: 3 4/12
21/6 + 40/12 is 41/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
21/6 = 21 × 2/6 × 2 = 42/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
40/12 = 40 × 1/12 × 1 = 40/12 - Add the two like fractions:
42/12 + 40/12 = 42 + 40/12 = 82/12 - 82/12 simplified gives 41/6
- So, 21/6 + 40/12 = 41/6
In mixed form: 65/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+40/12 21/6+80/12 21/12+40/12 21/6+40/24 63/6+40/12 21/18+40/12 21/6+40/36 21/30+40/12 21/6+40/60 21/42+40/12 21/6+40/84