Add 40/21 and 14/7
1st number: 1 19/21, 2nd number: 2 0/7
40/21 + 14/7 is 82/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
40/21 = 40 × 1/21 × 1 = 40/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
14/7 = 14 × 3/7 × 3 = 42/21 - Add the two like fractions:
40/21 + 42/21 = 40 + 42/21 = 82/21 - So, 40/21 + 14/7 = 82/21
In mixed form: 319/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+14/7 40/21+28/7 40/42+14/7 40/21+42/7 40/63+14/7 40/21+14/21 40/21+70/7 40/21+14/35 40/21+98/7 40/21+14/49