Add 72/4 and 21/24, Solve 18 0/4 + 21/24 as a fraction

Add 72/4 and 21/24

1^st number: 18 0/4, 2^nd number: 21/24

72/4 + 21/24 is 151/8.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 24 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 4 × 6 = 24,
72/4 = 72 × 6/4 × 6 = 432/24
Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24
Add the two like fractions:
432/24 + 21/24 = 432 + 21/24 = 453/24
453/24 simplified gives 151/8
So, 72/4 + 21/24 = 151/8
In mixed form: 187/8

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