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

Add 72/18 and 21/24

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

72/18 + 21/24 is 39/8.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 18 × 4 = 72,
72/18 = 72 × 4/18 × 4 = 288/72
Likewise, for the 2nd fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72
Add the two like fractions:
288/72 + 63/72 = 288 + 63/72 = 351/72
351/72 simplified gives 39/8
So, 72/18 + 21/24 = 39/8
In mixed form: 47/8

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