Add 21/48 and 84/25, Solve 21/48 + 3 9/25 as a fraction

Add 21/48 and 84/25

1^st number: 21/48, 2^nd number: 3 9/25

21/48 + 84/25 is 1519/400.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 25 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 48 × 25 = 1200,
21/48 = 21 × 25/48 × 25 = 525/1200
Likewise, for the 2nd fraction, since 25 × 48 = 1200,
84/25 = 84 × 48/25 × 48 = 4032/1200
Add the two like fractions:
525/1200 + 4032/1200 = 525 + 4032/1200 = 4557/1200
4557/1200 simplified gives 1519/400
So, 21/48 + 84/25 = 1519/400
In mixed form: 3319/400

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