Grade 3-5 · Common Core 3.NF.A.2

Fractions on a Number Line

A number line shows exactly where a fraction lives between two whole numbers. Plot any fraction below - or switch to Practice Mode and test yourself.

Grade 3-5Common Core 3.NF.A.2InteractiveNo loginFree

Concept

What does a fraction look like on a number line?

A number line is divided into equal parts. The denominator tells you how many equal parts to divide the space between 0 and 1. The numerator tells you how many parts to count from 0. For 3/4, divide 0-1 into 4 equal parts, then count 3.

01/42/43/413/4
The denominator = number of equal parts. The numerator = which part you are at.

Tool

Interactive Number Line

Add a fraction to the number line

How to plot

How to plot a fraction on a number line

Step 1

Identify the denominator

The denominator tells you how many equal parts to divide the line into.

01/42/43/41

Step 2

Mark the equal parts

Draw tick marks and label each equal part from 0 to 1.

01/42/43/41

Step 3

Count from 0

The numerator tells you how many parts to count from 0.

01/42/43/413/4

Improper Fractions

For 5/4, the fraction is greater than 1, so it lives to the right of 1.

Mixed Numbers

For 1 3/4, start at 1, then count 3/4 of the way to 2.

Examples

Worked examples

Plot 3/4

  1. Use the denominator to divide the line into equal parts.
  2. Count the numerator from 0.
  3. Mark the point on the number line.
01/42/43/413/4

Plot 5/6

  1. Use the denominator to divide the line into equal parts.
  2. Count the numerator from 0.
  3. Mark the point on the number line.
01/62/63/64/65/615/6

Plot 7/4

  1. Use the denominator to divide the line into equal parts.
  2. Count the numerator from 0.
  3. Mark the point on the number line.
01/42/43/415/46/47/421 3/4

Plot 1 2/3

  1. Use the denominator to divide the line into equal parts.
  2. Count the numerator from 0.
  3. Mark the point on the number line.
01/32/314/35/321 2/3

Practice

Quick practice

No login needed - just answer and check.

A number line from 0 to 1 is divided into 6 equal parts. What fraction is at the 4th mark?

On a number line, 3/5 is _____ than 4/5 because it is further _____ on the line.

What fraction is exactly halfway between 0 and 1/4?

FAQ

Frequently asked questions

How do you put a fraction on a number line?

Use three steps. First, use the denominator to divide the space from 0 to 1 into equal parts. Second, mark each equal part with a tick. Third, count from 0 using the numerator. For 3/4, divide 0 to 1 into 4 equal parts, then count 3 marks from 0. The point you land on is 3/4.

What does the denominator tell you on a number line?

The denominator tells you how many equal parts to divide the space between 0 and 1. A denominator of 4 means 4 equal parts. A denominator of 8 means 8 equal parts, so each part is smaller and the tick marks are closer together.

How do you plot an improper fraction on a number line?

An improper fraction is greater than or equal to 1, so the number line must extend past 1. For example, 7/4 equals 1 3/4, so it sits between 1 and 2. Divide each whole into fourths, then count 7 fourths from 0.

How do you compare fractions using a number line?

Fractions farther to the right on a number line are larger. For example, 1/3 is left of 1/2, so 1/3 is less than 1/2. Plotting both fractions on the same line makes the comparison visible.

What fraction is in the middle of 0 and 1?

The fraction exactly in the middle of 0 and 1 is 1/2. The midpoint splits the distance into two equal parts. The midpoint between 0 and 1/2 is 1/4, because it is half of one half.

How do equivalent fractions look on a number line?

Equivalent fractions land on the same point. For example, 1/2, 2/4, and 3/6 all mark the exact same location halfway between 0 and 1. The labels look different, but the value is the same.

Related

More fraction tools and guides