Add 84/8 and 42/9, Solve 10 4/8 + 4 6/9 as a fraction

Add 84/8 and 42/9

1^st number: 10 4/8, 2^nd number: 4 6/9

84/8 + 42/9 is 91/6.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 8 × 9 = 72,
84/8 = 84 × 9/8 × 9 = 756/72
Likewise, for the 2nd fraction, since 9 × 8 = 72,
42/9 = 42 × 8/9 × 8 = 336/72
Add the two like fractions:
756/72 + 336/72 = 756 + 336/72 = 1092/72
1092/72 simplified gives 91/6
So, 84/8 + 42/9 = 91/6
In mixed form: 151/6

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