COROANA???
[tex]6. \\ a) \frac{4x}{5y} = \frac{4 \times 2}{5 \times 7} = \frac{8}{35} [/tex]
[tex]b) \frac{x + y}{x} = \frac{2 + 7}{2} = \frac{9}{2} [/tex]
[tex]c) \frac{y}{y - x} = \frac{7}{7 - 2} = \frac{7}{5} [/tex]
[tex]d) \frac{2x + y}{3y - 5x} = \frac{2 \times 2 + 7}{3 \times 7 - 5 \times 2} = \frac{11}{11} = 1[/tex]