Let’s Learn!
How do you identify fractions on a number line?
Goal:
Goal:
What fraction of the chair lift is Madelyn using? Click through the slides below to find out!
The dot on this number line tells us the fraction of the lift chair that Madelyn is using. Do you know what the fraction is?
Let’s begin labeling this number line by starting with the denominator. The denominator is the number below the bar in a fraction that tells how many equal parts are in the whole or in the group. You can find this number by counting the spaces in the number line.
There are 3 spaces in this number line, so the denominator is 3.
Number line with 4 markers and a dot above the second mark. Each mark is labeled \({ \frac{\text{blank}}{3} }\).
Now, we need to find the numerator. The numerator is the number above the bar in a fraction that tells how many parts of the whole. You can find this number by counting from the first line on the number line, starting at 0.
Number line with 4 markers and a dot above the second mark. Marks are labeled 0, 1, 2, 3 on top. Each mark is labeled \({ \frac{\text{blank}}{3} }\) underneath.
There are 4 lines on this number line. We have labeled them 0, 1, 2, and 3. The dot is on the line labeled 1. That means our fraction is \({ \frac{1}{3} }\).
Number line with 4 markers. Marks are labeled 0, 1, 2, 3 on top. Each mark is labeled \({ \frac{0}{3} }\), \({ \frac{1}{3} }\), \({ \frac{2}{3} }\), \({ \frac{3}{3} }\) underneath. Dot above \({ \frac{1}{3} }\).
Madelyn is using \({ \frac{1}{3} }\) of the lift chair.
Number line with 4 markers. Marks are labeled 0, 1, 2, 3 on top. Each mark is labeled \({ \frac{0}{3} }\), \({ \frac{1}{3} }\), \({ \frac{2}{3} }\), \({ \frac{3}{3} }\) underneath. Dot above \({ \frac{1}{3} }\).
Question:
Let’s find the denominator of this fraction. Do you count the lines on the number line or the spaces?
Number line from 0 to 1 with with 7 markers. Dot above 5th mark which is labeled \({ \frac{\text{blank}}{6} }\).
The denominator is 6. We count the spaces on the number line to find the denominator.
Number line from 0 to 1 with with 7 markers. Dot above 5th mark.