$$\frac{21}{4}\times\frac{22}{7}\times\frac{7}{25}+1$$
$\frac{281}{50}=5.62$
$$\frac{21\times 22}{4\times 7}\times \frac{7}{25}+1$$
$$\frac{462}{28}\times \frac{7}{25}+1$$
$$\frac{33}{2}\times \frac{7}{25}+1$$
$$\frac{33\times 7}{2\times 25}+1$$
$$\frac{231}{50}+1$$
$$\frac{231}{50}+\frac{50}{50}$$
$$\frac{231+50}{50}$$
$$\frac{281}{50}$$
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$\frac{281}{2 \cdot 5 ^ {2}} = 5\frac{31}{50} = 5.62$
