Question

by what number should 5 / 7 be divided to get -15/ 56

Answer 1

5/7×-56/15=-8/3
is your answer

Answer 2

Let it should be divided by x,

$\frac{ \frac{5}{7} }{x} = - \frac{15}{56} \\ \\ \\ \frac{1}{x} = \frac{ - \frac{15}{56} }{ \frac{5}{7} } \\ \\ \frac{1}{x} = - \frac{15}{56} \times \frac{7}{5} \\ \\ \frac{1}{x} = - \frac{3}{8} \\ \\ x = - \frac{8}{3}$



Required number is -8/3



I hope this will help you


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