Add 27/21 and 56/7
1st number: 1 6/21, 2nd number: 8 0/7
27/21 + 56/7 is 65/7.
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,
27/21 = 27 × 1/21 × 1 = 27/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
56/7 = 56 × 3/7 × 3 = 168/21 - Add the two like fractions:
27/21 + 168/21 = 27 + 168/21 = 195/21 - 195/21 simplified gives 65/7
- So, 27/21 + 56/7 = 65/7
In mixed form: 92/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+56/7 27/42+56/7 27/21+56/14 81/21+56/7 27/63+56/7 27/21+56/21 27/21+56/35 27/21+56/49