Add 21/9 and 81/8, Solve 2 3/9 + 10 1/8 as a fraction

Add 21/9 and 81/8

1^st number: 2 3/9, 2^nd number: 10 1/8

21/9 + 81/8 is 299/24.

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

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 9 × 8 = 72,
21/9 = 21 × 8/9 × 8 = 168/72
Likewise, for the 2nd fraction, since 8 × 9 = 72,
81/8 = 81 × 9/8 × 9 = 729/72
Add the two like fractions:
168/72 + 729/72 = 168 + 729/72 = 897/72
897/72 simplified gives 299/24
So, 21/9 + 81/8 = 299/24
In mixed form: 1211/24

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