Add 21/9 and 15/27
1st number: 2 3/9, 2nd number: 15/27
21/9 + 15/27 is 26/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 9 × 3 = 27,
21/9 = 21 × 3/9 × 3 = 63/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
15/27 = 15 × 1/27 × 1 = 15/27 - Add the two like fractions:
63/27 + 15/27 = 63 + 15/27 = 78/27 - 78/27 simplified gives 26/9
- So, 21/9 + 15/27 = 26/9
In mixed form: 28/9
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