Add 21/24 and 7/18
21/24 + 7/18 is 91/72.
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,
7/18 = 7 × 4/18 × 4 = 28/72 - Add the two like fractions:
63/72 + 28/72 = 63 + 28/72 = 91/72 - So, 21/24 + 7/18 = 91/72
In mixed form: 119/72
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