For 4 3/16, the improper fraction would be:
$$\frac{4 \times 16 + 3}{16} = \frac{67}{16}$$
Now, we can convert this improper fraction into a decimal by dividing the numerator by the denominator:
$$\frac{67}{16} = 4.1875$$
For -3 4/9, the improper fraction would
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