Add 24/21 and 28/54, Solve 1 3/21 + 28/54 as a fraction

Add 24/21 and 28/54

1^st number: 1 3/21, 2^nd number: 28/54

24/21 + 28/54 is 314/189.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 21 × 18 = 378,
24/21 = 24 × 18/21 × 18 = 432/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
28/54 = 28 × 7/54 × 7 = 196/378
Add the two like fractions:
432/378 + 196/378 = 432 + 196/378 = 628/378
628/378 simplified gives 314/189
So, 24/21 + 28/54 = 314/189
In mixed form: 1125/189

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