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May 11, 2022

Welcome to Mathnasium’s Math Tricks series. Today we are comparing fractions that have the same numerators but have different denominators (the total number of equal parts in the whole).

When we compare fractions with the same numerators, we compare the *same* *number *of parts; however, the wholes may be divided into a *different number* of parts. The trick is to compare the denominators.

Recall that, for each whole of the same size:

*As the number of equal parts increases, the size of each part becomes smaller.*

*As the number of equal parts decreases, the size of each part grows bigger.*

Follow the example below to identify the fraction with the *biggest* value.

Step 1: Identify what you are looking for.

You love candy and so you want the *biggest* piece.

Step 2: Identify the number of pieces you are comparing.

You are comparing one piece from each candy bar.

Step 3: Compare the denominators (the number of pieces each candy bar has been cut).

Thirds are bigger than eighths.

Answer: One piece of a candy bar cut into three equal pieces, since [latex]\frac{1}{3}[/latex] is bigger than [latex]\frac{1}{8}[/latex].

Now, with this strategy, you are ready to compare fractions with the same numerators. Click here for more practice problems, then check your answers here.

If you missed this or any of our other Math Tricks videos, check them out on our YouTube channel!

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