Add 42/9 and 18/63, Solve 4 6/9 + 18/63 as a fraction

Add 42/9 and 18/63

1^st number: 4 6/9, 2^nd number: 18/63

42/9 + 18/63 is 104/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 9 × 7 = 63,
42/9 = 42 × 7/9 × 7 = 294/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
18/63 = 18 × 1/63 × 1 = 18/63
Add the two like fractions:
294/63 + 18/63 = 294 + 18/63 = 312/63
312/63 simplified gives 104/21
So, 42/9 + 18/63 = 104/21
In mixed form: 420/21

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