What are unit fractions and mixed fractions?

Oh dear, oh dear.

Looks like one fifth of the leaves on your plant has been destroyed.

Did you know that when the numerator is one, that means one part of the whole, and it's called a unit fraction?

You know, like one quarter of an apple, or one eighth of a pizza.

Look, four out of five of the leaves are fine!

Four fifths is a non-unit fraction because the numerator is not one.

It's just that one poorly leaf.

And if you look at both the plants in the room, nine tenths of the leaves are healthy!

That means one and four fifths of your plants are healthy.

That's a mixed fraction because it contains whole numbers and fractions.

Hahaha, oh dear!