Add 72/18 and 21/54, Solve 4 0/18 + 21/54 as a fraction

Add 72/18 and 21/54

1^st number: 4 0/18, 2^nd number: 21/54

72/18 + 21/54 is 79/18.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 18 × 3 = 54,
72/18 = 72 × 3/18 × 3 = 216/54
Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54
Add the two like fractions:
216/54 + 21/54 = 216 + 21/54 = 237/54
237/54 simplified gives 79/18
So, 72/18 + 21/54 = 79/18
In mixed form: 47/18

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