Add 18/72 and 21/24
18/72 + 21/24 is 9/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72 - Add the two like fractions:
18/72 + 63/72 = 18 + 63/72 = 81/72 - 81/72 simplified gives 9/8
- So, 18/72 + 21/24 = 9/8
In mixed form: 11/8
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