Simplify $\frac{70v}{710}$70v710.

Simplify $\frac{15k}{20k}$15k20k.

Express in simplest form:

$\frac{42xy}{18y}$42xy18y

Simplify $\frac{8k^2}{-12k}$8k2−12k

Create and recognize equivalent expressions involving radical and exponential forms of expressions.