Add 21/27 and 3/6
21/27 + 3/6 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
21/27 = 21 × 2/27 × 2 = 42/54 - Likewise, for the 2nd fraction, since 6 × 9 = 54,
3/6 = 3 × 9/6 × 9 = 27/54 - Add the two like fractions:
42/54 + 27/54 = 42 + 27/54 = 69/54 - 69/54 simplified gives 23/18
- So, 21/27 + 3/6 = 23/18
In mixed form: 15/18
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