Add 36/54 and 42/21, Solve 36/54 + 2 0/21 as a fraction

Add 36/54 and 42/21

1^st number: 36/54, 2^nd number: 2 0/21

36/54 + 42/21 is 8/3.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
36/54 = 36 × 7/54 × 7 = 252/378
Likewise, for the 2nd fraction, since 21 × 18 = 378,
42/21 = 42 × 18/21 × 18 = 756/378
Add the two like fractions:
252/378 + 756/378 = 252 + 756/378 = 1008/378
1008/378 simplified gives 8/3
So, 36/54 + 42/21 = 8/3
In mixed form: 22/3

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