Add 63/3 and 70/8, Solve 21 0/3 + 8 6/8 as a fraction

Add 63/3 and 70/8

1^st number: 21 0/3, 2^nd number: 8 6/8

63/3 + 70/8 is 119/4.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 3 × 8 = 24,
63/3 = 63 × 8/3 × 8 = 504/24
Likewise, for the 2nd fraction, since 8 × 3 = 24,
70/8 = 70 × 3/8 × 3 = 210/24
Add the two like fractions:
504/24 + 210/24 = 504 + 210/24 = 714/24
714/24 simplified gives 119/4
So, 63/3 + 70/8 = 119/4
In mixed form: 293/4

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