Add 3/21 and 63/16, Solve 3/21 + 3 15/16 as a fraction

Add 3/21 and 63/16

1^st number: 3/21, 2^nd number: 3 15/16

3/21 + 63/16 is 457/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
3/21 = 3 × 16/21 × 16 = 48/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
63/16 = 63 × 21/16 × 21 = 1323/336
Add the two like fractions:
48/336 + 1323/336 = 48 + 1323/336 = 1371/336
1371/336 simplified gives 457/112
So, 3/21 + 63/16 = 457/112
In mixed form: 49/112

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