RENAMING FRACTIONS WITH A SPECIFIED DENOMINATOR
• PRACTICE (online exercises and printable worksheets)
• This page gives an in-a-nutshell discussion of the concepts.
For a complete discussion, read the text.

To add or subtract fractions, the denominators must be the same.
This lesson gives you practice renaming fractions with a desired denominator.

EXAMPLES:
Question: Write $\,\displaystyle\frac{2}{7}\,$ with a denominator of $\,14\,$:

Solution: $\displaystyle\frac{2}{7} = \frac{4}{14}$

The key is to multiply by $\,1\,$ in the correct way!
The original denominator is $\,7\,$;
the desired denominator is $\,14\,$.
What must $\,7\,$ be multiplied by, to get $\,14\,$?   Answer: $\,2\,$

Thus, you multiply by $\,1\,$ in the form of $\,\displaystyle\frac{2}{2}\,$, as shown below:

$\displaystyle\frac{2}{7} = \frac{2}{7}\cdot\frac{2}{2} = \frac{4}{14}$
Master the ideas from this section
by practicing the exercise at the bottom of this page.

When you're done practicing, move on to:
Practice with Factors

Type in your answer as a diagonal fraction (like 2/7),
since you can't type horizontal fractions.

 (an even number, please)