Add 72/18 and 81/36, Solve 4 0/18 + 2 9/36 as a fraction

Add 72/18 and 81/36

1^st number: 4 0/18, 2^nd number: 2 9/36

72/18 + 81/36 is 25/4.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 18 × 2 = 36,
72/18 = 72 × 2/18 × 2 = 144/36
Likewise, for the 2nd fraction, since 36 × 1 = 36,
81/36 = 81 × 1/36 × 1 = 81/36
Add the two like fractions:
144/36 + 81/36 = 144 + 81/36 = 225/36
225/36 simplified gives 25/4
So, 72/18 + 81/36 = 25/4
In mixed form: 61/4

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