Question

By what retional number should
- 65/ 7 be dividded to get -12/5?​

Answer 1

let no to be divided by = x

$\frac{ - 65}{7} \div x = \frac{ - 12}{5}$

$\frac{ - 65}{7} \times \frac{1}{x} = \frac{ - 12}{5}$

$\frac{1}{x} = \frac{ - 12}{5} \div \frac{ - 65}{7}$

$\frac{1}{x} = \frac{ - 12}{5} \times \frac{7}{ - 65}$

$\frac{1}{x} = \frac{84}{325}$

$x = \frac{325}{84}$