Determine the result. Type "Error" if the program would terminate due to division by $0.$ If the answer is a floating$-$point number, answer in the form #$.$#$,$ even if the answer is a whole number.

$1)$

$12/4$

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Incorrect

Simple division yields a floating point result.

$2)$

$5/10$

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$3)$

$5\mathrm{.}0//2$

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$4)$

$100/0$