a) 1 - $\frac{1}{3}$

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b) 1 - $\frac{6}{9}$

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c) 2 - $\frac{2}{5}$

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a) 1 - $\frac{1}{3}$ = $\frac{3}{3}$ - $\frac{1}{3}$ = $\frac{2}{3}$

b) 1 - $\frac{6}{9}$ = $\frac{9}{9}$ - $\frac{6}{9}$ = $\frac{3}{9}$= $\frac{1}{3}$

c) 2 - $\frac{2}{5}$ = $\frac{10}{5}$ - $\frac{2}{5}$ = $\frac{8}{5}$