Question

7. By what number should we multiply _12/13 to get 4/39
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Answer 1

Solution :-

Let the no. be x

$\implies \sf \frac{ - 12}{13} \times x = \frac{4}{39} \\\\ \implies \sf \frac{ - 12}{13}x= \frac{4}{39} \\\\ \implies \sf x = \frac{4}{39} \times \frac{ -13}{12} \\\\ \implies \sf x = \frac{1}{3} \times \frac{ -1}{3} \\ \\ \implies \underline { \boxed{ \sf x = - \frac{ 1}{9} }}$