Add 21/54 and 18/3
1st number: 21/54, 2nd number: 6 0/3
21/54 + 18/3 is 115/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 3 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Likewise, for the 2nd fraction, since 3 × 18 = 54,
18/3 = 18 × 18/3 × 18 = 324/54 - Add the two like fractions:
21/54 + 324/54 = 21 + 324/54 = 345/54 - 345/54 simplified gives 115/18
- So, 21/54 + 18/3 = 115/18
In mixed form: 67/18
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