Simplify: $\frac{40y}{450}$40y450
Simplify: $\frac{6n}{9n}$6n9n
Simplify: $\frac{42xy}{24y}$42xy24y
Simplify: $\frac{15n^2}{-40n}$15n2−40n
Manipulate algebraic fractions. Factorise and simplify rational expressions.