$$x/2 \times 7/2$$
$\frac{7x}{4}$
$$\frac{\frac{x\times 7}{2}}{2}$$
$$\frac{x\times 7}{2\times 2}$$
$$\frac{x\times 7}{4}$$
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$\frac{7}{4} = 1\frac{3}{4} = 1.75$
