Add 40/6 and 6/21
1st number: 6 4/6, 2nd number: 6/21
40/6 + 6/21 is 146/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
6/21 = 6 × 2/21 × 2 = 12/42 - Add the two like fractions:
280/42 + 12/42 = 280 + 12/42 = 292/42 - 292/42 simplified gives 146/21
- So, 40/6 + 6/21 = 146/21
In mixed form: 620/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6+6/21 40/6+12/21 40/12+6/21 40/6+6/42 40/6+18/21 40/18+6/21 40/6+6/63 40/6+30/21 40/30+6/21 40/6+42/21 40/42+6/21