Add 40/6 and 21/7
1st number: 6 4/6, 2nd number: 3 0/7
40/6 + 21/7 is 29/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 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 7 × 6 = 42,
21/7 = 21 × 6/7 × 6 = 126/42 - Add the two like fractions:
280/42 + 126/42 = 280 + 126/42 = 406/42 - 406/42 simplified gives 29/3
- So, 40/6 + 21/7 = 29/3
In mixed form: 92/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6+21/7 40/6+42/7 40/12+21/7 40/6+21/14 40/6+63/7 40/18+21/7 40/30+21/7 40/6+21/35 40/42+21/7 40/6+21/49