Add 90/6 and 81/36, Solve 15 0/6 + 2 9/36 as a fraction

Add 90/6 and 81/36

1^st number: 15 0/6, 2^nd number: 2 9/36

90/6 + 81/36 is 69/4.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 36 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 6 × 6 = 36,
90/6 = 90 × 6/6 × 6 = 540/36
Likewise, for the 2nd fraction, since 36 × 1 = 36,
81/36 = 81 × 1/36 × 1 = 81/36
Add the two like fractions:
540/36 + 81/36 = 540 + 81/36 = 621/36
621/36 simplified gives 69/4
So, 90/6 + 81/36 = 69/4
In mixed form: 171/4

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