$$2 \times 22/7 \times 1.4 \times 3$$
$26.4$
$$\frac{44}{7}\times 1.4\times 3$$
$$\frac{44}{7}\times \frac{7}{5}\times 3$$
$$\frac{44\times 7}{7\times 5}\times 3$$
$$\frac{44}{5}\times 3$$
$$\frac{44\times 3}{5}$$
$$\frac{132}{5}$$
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$\frac{3 \cdot 11 \cdot 2 ^ {2}}{5} = 26\frac{2}{5} = 26.4$
