Add 50/21 and 18/4, Solve 2 8/21 + 4 2/4 as a fraction

Add 50/21 and 18/4

1^st number: 2 8/21, 2^nd number: 4 2/4

50/21 + 18/4 is 289/42.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
50/21 = 50 × 4/21 × 4 = 200/84
Likewise, for the 2nd fraction, since 4 × 21 = 84,
18/4 = 18 × 21/4 × 21 = 378/84
Add the two like fractions:
200/84 + 378/84 = 200 + 378/84 = 578/84
578/84 simplified gives 289/42
So, 50/21 + 18/4 = 289/42
In mixed form: 637/42

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