Add 63/3 and 42/70, Solve 21 0/3 + 42/70 as a fraction

Add 63/3 and 42/70

1^st number: 21 0/3, 2^nd number: 42/70

63/3 + 42/70 is 108/5.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 3 × 70 = 210,
63/3 = 63 × 70/3 × 70 = 4410/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210
Add the two like fractions:
4410/210 + 126/210 = 4410 + 126/210 = 4536/210
4536/210 simplified gives 108/5
So, 63/3 + 42/70 = 108/5
In mixed form: 213/5

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