Add 84/8 and 21/63, Solve 10 4/8 + 21/63 as a fraction

Add 84/8 and 21/63

1^st number: 10 4/8, 2^nd number: 21/63

84/8 + 21/63 is 65/6.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
84/8 = 84 × 63/8 × 63 = 5292/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504
Add the two like fractions:
5292/504 + 168/504 = 5292 + 168/504 = 5460/504
5460/504 simplified gives 65/6
So, 84/8 + 21/63 = 65/6
In mixed form: 105/6

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