The difference of two rational numbers is $\frac{-6}{25}$. If the greater number is $\frac{-4}{9}$, what is the smaller number?

1. Multiply.

(ix) $\frac{53}{69}\times -1$

7. Simplify.

(i) $\frac{5}{2}\times \frac{-7}{40}\times \frac{9}{70}$

Divide: $-6÷3\frac{3}{5}$

Divide: $\frac{-105}{11}÷\frac{-15}{121}$

By what rational number should $\frac{-8}{39}$ be multiplied to obtain $26$

By what number should $\frac{-55}{13}$ be divided to get $\frac{11}{26}$.