Add 21/27 and 3/9
21/27 + 3/9 is 10/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
21/27 = 21 × 1/27 × 1 = 21/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
3/9 = 3 × 3/9 × 3 = 9/27 - Add the two like fractions:
21/27 + 9/27 = 21 + 9/27 = 30/27 - 30/27 simplified gives 10/9
- So, 21/27 + 3/9 = 10/9
In mixed form: 11/9
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