$$\frac{3}{7}\times455+\frac{5}{8}\times456=3$$
$\text{false}$
$$\frac{3\times 455}{7}+\frac{5}{8}\times 456=3$$
$$\frac{1365}{7}+\frac{5}{8}\times 456=3$$
$$195+\frac{5}{8}\times 456=3$$
$$195+\frac{5\times 456}{8}=3$$
$$195+\frac{2280}{8}=3$$
$$195+285=3$$
$$480=3$$
$$\text{false}$$
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