1.

When $$\left( {\frac{1}{2} - \frac{1}{4} + \frac{1}{5} - \frac{1}{6}} \right)$$is divided by $$\left( {\frac{2}{5} - \frac{5}{9} + \frac{3}{5} - \frac{7}{{18}}} \right){\text{,}}$$then the result is = ?

A. ${\text{5}}\frac{1}{{10}}$$
B. ${\text{2}}\frac{1}{{18}}$$
C. ${\text{3}}\frac{1}{6}$$
D. ${\text{3}}\frac{3}{{10}}$$
Answer» B. ${\text{2}}\frac{1}{{18}}$$


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