Add 18/4 and 25/42, Solve 4 2/4 + 25/42 as a fraction

Add 18/4 and 25/42

1^st number: 4 2/4, 2^nd number: 25/42

18/4 + 25/42 is 107/21.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 4 × 21 = 84,
18/4 = 18 × 21/4 × 21 = 378/84
Likewise, for the 2nd fraction, since 42 × 2 = 84,
25/42 = 25 × 2/42 × 2 = 50/84
Add the two like fractions:
378/84 + 50/84 = 378 + 50/84 = 428/84
428/84 simplified gives 107/21
So, 18/4 + 25/42 = 107/21
In mixed form: 52/21

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