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Fractions

What is

$\dfrac{2}{3} + \dfrac{5}{9}$ ?
A.

$\dfrac{11}{9}$ A.

$\dfrac{11}{9}$
B.

$\dfrac{7}{12}$
C.

$\dfrac{13}{12}$
D.

$1$
E.

$\dfrac{20}{9}$

$\dfrac{2}{3} + \dfrac{5}{9}$

$= \dfrac{2\times 9}{3\times 9}+\dfrac{5\times 3}{9\times 3}$

$= \dfrac{18}{27}+\dfrac{15}{27}$

$=\dfrac{{18}+{15}}{27}$

$=\dfrac{11}{9}$ No More Steps