Add 56/21 and 40/6, Solve 2 14/21 + 6 4/6 as a fraction

Add 56/21 and 40/6

1^st number: 2 14/21, 2^nd number: 6 4/6

56/21 + 40/6 is 28/3.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 21 × 2 = 42,
56/21 = 56 × 2/21 × 2 = 112/42
Likewise, for the 2nd fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42
Add the two like fractions:
112/42 + 280/42 = 112 + 280/42 = 392/42
392/42 simplified gives 28/3
So, 56/21 + 40/6 = 28/3
In mixed form: 91/3

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