Add 80/9 and 63/21, Solve 8 8/9 + 3 0/21 as a fraction

Add 80/9 and 63/21

1^st number: 8 8/9, 2^nd number: 3 0/21

80/9 + 63/21 is 107/9.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 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 21 × 3 = 63,
63/21 = 63 × 3/21 × 3 = 189/63
Add the two like fractions:
560/63 + 189/63 = 560 + 189/63 = 749/63
749/63 simplified gives 107/9
So, 80/9 + 63/21 = 107/9
In mixed form: 118/9

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