Add 50/21 and 42/54, Solve 2 8/21 + 42/54 as a fraction

Add 50/21 and 42/54

1^st number: 2 8/21, 2^nd number: 42/54

50/21 + 42/54 is 199/63.

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,
50/21 = 50 × 18/21 × 18 = 900/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378
Add the two like fractions:
900/378 + 294/378 = 900 + 294/378 = 1194/378
1194/378 simplified gives 199/63
So, 50/21 + 42/54 = 199/63
In mixed form: 310/63

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