Question

Make up a fraction that cannot be simplified that has 12 as its denominator.

Answer 1

$12=3\times2\times2\\\\the\ nominator\ must\ be\ different\ from\ any\ even\ number\\and\ any\ number\ divisible\ by\ 3\\\\therefore\ your\ answer\ is:\\\\\huge\boxed{\frac{1}{12};\ \frac{5}{12};\ \frac{7}{12};\ \frac{11}{12}}$