Add 21/4 and 3/63, Solve 5 1/4 + 3/63 as a fraction

Add 21/4 and 3/63

1^st number: 5 1/4, 2^nd number: 3/63

21/4 + 3/63 is 445/84.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 4 × 63 = 252,
21/4 = 21 × 63/4 × 63 = 1323/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
3/63 = 3 × 4/63 × 4 = 12/252
Add the two like fractions:
1323/252 + 12/252 = 1323 + 12/252 = 1335/252
1335/252 simplified gives 445/84
So, 21/4 + 3/63 = 445/84
In mixed form: 525/84

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