INSTRUCTIONS

Mixed Numbers as Fractions uses number lines to demonstrate how a fraction can be renamed from mixed form to fraction form.

The number line below shows the mixed number 2 3/5. You are to write 2 3/5 in fraction form, with only a numerator and denominator.

In the example below, you will notice that the arrow is pointing to the 13th mark after 0, giving a numerator of 13. The number of marks between each whole unit is 5, giving a denominator of 5 for the fraction 13/5. Some textbooks call a fraction such as this where the numerator is equal to or larger than the denominator improper. This is also known as the fraction form or a/b form of the number.

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To write the example, you can think of each whole unit as 5/5. So in the above example you would have:

Another way to arrive at the numerator 13 is to multiply the whole number 2 by the denominator 5 and then add the numerator 3 as in this example: