Add 63/21 and 4/12, Solve 3 0/21 + 4/12 as a fraction

Add 63/21 and 4/12

1^st number: 3 0/21, 2^nd number: 4/12

63/21 + 4/12 is 10/3.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
63/21 = 63 × 4/21 × 4 = 252/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
4/12 = 4 × 7/12 × 7 = 28/84
Add the two like fractions:
252/84 + 28/84 = 252 + 28/84 = 280/84
280/84 simplified gives 10/3
So, 63/21 + 4/12 = 10/3
In mixed form: 31/3

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