Add 20/54 and 48/21, Solve 20/54 + 2 6/21 as a fraction

Add 20/54 and 48/21

1^st number: 20/54, 2^nd number: 2 6/21

20/54 + 48/21 is 502/189.

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,
20/54 = 20 × 7/54 × 7 = 140/378
Likewise, for the 2nd fraction, since 21 × 18 = 378,
48/21 = 48 × 18/21 × 18 = 864/378
Add the two like fractions:
140/378 + 864/378 = 140 + 864/378 = 1004/378
1004/378 simplified gives 502/189
So, 20/54 + 48/21 = 502/189
In mixed form: 2124/189

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