Add 21/42 and 63/25, Solve 21/42 + 2 13/25 as a fraction

Add 21/42 and 63/25

1^st number: 21/42, 2^nd number: 2 13/25

21/42 + 63/25 is 151/50.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
21/42 = 21 × 25/42 × 25 = 525/1050
Likewise, for the 2nd fraction, since 25 × 42 = 1050,
63/25 = 63 × 42/25 × 42 = 2646/1050
Add the two like fractions:
525/1050 + 2646/1050 = 525 + 2646/1050 = 3171/1050
3171/1050 simplified gives 151/50
So, 21/42 + 63/25 = 151/50
In mixed form: 31/50

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