For $4 \frac{2}{3}$, multiply the whole number 4 by the denominator 3 and add the numerator 2 to get 14. So, $4 \frac{2}{3}$ becomes $\frac{14}{3}$. Similarly, for $-1 \frac{1}{8}$, multiply the whole number 1 by the denominator 8 and add the numerator 1 to get 9.
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