Add 21/24 and 15/18
21/24 + 15/18 is 41/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Add the two like fractions:
63/72 + 60/72 = 63 + 60/72 = 123/72 - 123/72 simplified gives 41/24
- So, 21/24 + 15/18 = 41/24
In mixed form: 117/24
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