Add 80/9 and 21/63, Solve 8 8/9 + 21/63 as a fraction

Add 80/9 and 21/63

1^st number: 8 8/9, 2^nd number: 21/63

80/9 + 21/63 is 83/9.

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,
80/9 = 80 × 7/9 × 7 = 560/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
21/63 = 21 × 1/63 × 1 = 21/63
Add the two like fractions:
560/63 + 21/63 = 560 + 21/63 = 581/63
581/63 simplified gives 83/9
So, 80/9 + 21/63 = 83/9
In mixed form: 92/9

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