# How to Express One Number As a Fraction of Another Number

## One Number As a Fraction of Another Number

One number can be expressed as a fraction of another number.

Imagine there were 5 shapes (3 squares and 2 triangles). To find what fraction of the shapes are squares, you would write 3 out of 5 as a fraction: ## How to Express One Number As a Fraction of Another Number

Expressing one number as a fraction of another is easy. Write the first number on top of a fraction, and the second number on the bottom of the fraction.

### Question

What is 45 out of 60 as a fraction?

# 1

Write 45 as the top number (called the numerator) of the fraction.

# 2

Write 60 as the bottom number (called the denominator) of the fraction. # 3

Simplify this fraction if possible.

Simplify the fraction by dividing the top and bottom numbers by their greatest common factor (which is 15).

45 ÷ 15 = 3

60 ÷ 15 = 4 45 out of 60 is 34 as a fraction. ## Slider

The slider below shows another real example of expressing one number as a fraction of another number.

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