Add 81/18 and 18/7, Solve 4 9/18 + 2 4/7 as a fraction

Add 81/18 and 18/7

1^st number: 4 9/18, 2^nd number: 2 4/7

81/18 + 18/7 is 99/14.

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,
81/18 = 81 × 7/18 × 7 = 567/126
Likewise, for the 2nd fraction, since 7 × 18 = 126,
18/7 = 18 × 18/7 × 18 = 324/126
Add the two like fractions:
567/126 + 324/126 = 567 + 324/126 = 891/126
891/126 simplified gives 99/14
So, 81/18 + 18/7 = 99/14
In mixed form: 71/14

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