1.

Simplify : $$\frac{{1 + \frac{1}{2}}}{{1 - \frac{1}{2}}} \div \frac{4}{7}\left( {\frac{2}{5} + \frac{3}{{10}}} \right)$$$${\text{of}}$$ $$\frac{{\frac{1}{2} + \frac{1}{3}}}{{\frac{1}{2} - \frac{1}{3}}}$$

A. $\frac{2}{3}$$
B. $37\frac{1}{2}$$
C. $\frac{3}{2}$$
D. $13\frac{3}{8}$$
Answer» D. $13\frac{3}{8}$$


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