The common denominator of the two fractions will be 18.
The Common denominator of [tex]\dfrac{1}{6}[/tex] and [tex]\dfrac{1}{9}[/tex].
To find the common denominator between any two fractions we need to find the LCM of the two denominators.
2 | 6, 9
3 | 3, 9
3 | 1, 3
| 1, 1
therefore, the LCM of the two numbers will be [tex]2 \times 3\times3 =18[/tex].
As we can see that the LCM of the two fractions is 18.
[tex]\dfrac{1}{6}+\dfrac{1}{9}\\\\=\dfrac{1\times 3}{6\times 3}+\dfrac{1\times 2}{9 \times 2}\\\\=\dfrac{3+2}{18}\\\\=\dfrac{5}{18}[/tex]
Thus, the common denominator will be 18.
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