Sharing a brownie four ways
Today we'll split a shape into four equal shares. Imagine sharing one brownie with three friends!
Here is the whole brownie. One big piece — that's the whole.
First, we cut it down the middle. Now we have two equal pieces — halves.
Look — we cut each half in half again. That gives us four equal pieces.
Let's count them: one, two, three, four. Four equal shares!
We call these fourths — or quarters. Both words mean the same thing.
Look at just one piece. This piece is a fourth of the whole brownie.
We can write a fourth as one over four — one out of four equal parts.
Put all four fourths together and we get the whole brownie back.
When a shape is split into four equal shares, each share is a fourth — also called a quarter!