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  • - [Voiceover] Let's learn fractions.

  • Understanding fractions can be easy as one, two, three.

  • Just watch this video,

  • and you'll be using fractions with ease.

  • It's easy to count whole things,

  • like a pizza, a pie, or a donut.

  • But what if we only had part of one?

  • How would we count it then?

  • We'd use fractions.

  • A fraction looks like this.

  • The bottom number is called the denominator.

  • It shows how many equal pieces

  • an object has been divided into.

  • The top number is called the numerator.

  • It shows how many parts of the denominator

  • you are looking at.

  • For example, a pizza is usually divided into eight slices.

  • That means that, in a fraction,

  • the denominator would be eight.

  • If you normally eat one slice of pizza,

  • then one would be the numerator.

  • That means that you eat one eighth of a pizza.

  • If you normally eat two slices of pizza,

  • then two would be the numerator.

  • The denominator would still be eight,

  • since there are always eight slices of pizza.

  • That would mean that you eat two eighths of a pizza.

  • Let's try another example.

  • This pie is divided into six pieces,

  • and you eat four pieces of it.

  • If there were six pieces of pie, and you eat four,

  • what is the denominator of your fraction?

  • (upbeat music)

  • That's right, six.

  • What is the numerator?

  • (upbeat music)

  • Yep, it's four.

  • That means that you ate four sixths of the pie.

  • Let's try one more example.

  • If you and your friend have one donut to share,

  • then you will cut it into two pieces.

  • If there are two pieces of donut and you eat one,

  • what is the numerator of your fraction?

  • (upbeat music)

  • That's right, the numerator is one.

  • What is the denominator?

  • (upbeat music)

  • Right again! It's two.

  • When the fraction is one over two,

  • we call that one half.

  • Thanks for watching.

  • (upbeat music)

- [Voiceover] Let's learn fractions.

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B1 numerator denominator pizza fraction upbeat music upbeat

Let's Learn Fractions - Understanding Math for Kids

  • 106 13
    阿蘭 posted on 2017/02/08
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