Question

$\frac{3}{7} \div \frac{( - 4)}{21}$
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Answer 1

$\frac{3}{7} \div \frac{ - 4}{21}$

$\frac{3}{7} \times \frac{ - 21}{4}$

$\frac{ - 63}{ \: \: \: 28}$

Cancelling by 7 ;

$\boxed{\frac{ - 9}{ \: \: \: 4}}$

When we divide two fractions, we take the reciprocal of the second fraction and multiply them.

For eg:

$\frac{1}{2} \div \frac{1}{4}$

$\frac{1}{2} \times \frac{4}{1}$

$\frac{4}{2}$

$2$

$\\ \\ \\ \: \purple{ \tt{Hope \: \: this \: \: helps \: \: you \: !}}$