Add 25/4 and 21/42, Solve 6 1/4 + 21/42 as a fraction

Add 25/4 and 21/42

1^st number: 6 1/4, 2^nd number: 21/42

25/4 + 21/42 is 27/4.

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,
25/4 = 25 × 21/4 × 21 = 525/84
Likewise, for the 2nd fraction, since 42 × 2 = 84,
21/42 = 21 × 2/42 × 2 = 42/84
Add the two like fractions:
525/84 + 42/84 = 525 + 42/84 = 567/84
567/84 simplified gives 27/4
So, 25/4 + 21/42 = 27/4
In mixed form: 63/4

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