[tex]{\boxed{ \frac{210}{13}}}[/tex]
Solution:
[tex] \frac{7!}{312} \\⟹7! \\ 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 \\ = 5040 \\⟹ \frac{5040}{312} \\⟹ \frac{\cancel{5040}}{\cancel{312}} \\⟹{\boxed{ \frac{210}{13}}}[/tex]
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