Michael bakes a piece of garlic bread for dinner. he shares it equally with his 3 sisters. How Michael and his 3 sisters can each get an equal share of the garlic bread.

Let the size of the garlic bread be y.
Given that Micheal and his 3 sisiters get an equal share, this implies that the garlic bread is shared into 4 equal parts.
This is evaluated as
[tex]\frac{y}{4}\text{ each}[/tex]Each person thus gets
[tex]\frac{y}{4}[/tex]This can be illustrated in a diagram as shown below: