Add 56/21 and 6/5, Solve 2 14/21 + 1 1/5 as a fraction

Add 56/21 and 6/5

1^st number: 2 14/21, 2^nd number: 1 1/5

56/21 + 6/5 is 58/15.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
56/21 = 56 × 5/21 × 5 = 280/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
6/5 = 6 × 21/5 × 21 = 126/105
Add the two like fractions:
280/105 + 126/105 = 280 + 126/105 = 406/105
406/105 simplified gives 58/15
So, 56/21 + 6/5 = 58/15
In mixed form: 313/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad