Add 8/18 and 21/7, Solve 8/18 + 3 0/7 as a fraction

Add 8/18 and 21/7

1^st number: 8/18, 2^nd number: 3 0/7

8/18 + 21/7 is 31/9.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126
Likewise, for the 2nd fraction, since 7 × 18 = 126,
21/7 = 21 × 18/7 × 18 = 378/126
Add the two like fractions:
56/126 + 378/126 = 56 + 378/126 = 434/126
434/126 simplified gives 31/9
So, 8/18 + 21/7 = 31/9
In mixed form: 34/9

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