IXL | Identify fraction expressions with a particular sum: denominators of 10 and 100

Which of the following expressions equal

100

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Learn with an example

question

Which of the following expressions equal

100

key idea

To add fractions, rewrite them so they have the same denominator. Then add the numerators.

is the same as

100

Use this fact to rewrite any fraction with the denominator 10 as a fraction with the denominator 100. For example,

100

and

100

solution

Find each sum.

Find the sum of

100

Rewrite

with a denominator of 100.

Since

100

Add the numerators.

100

Find the sum of

100

Rewrite

with a denominator of 100.

Since

100

Add the numerators.

100

The correct answer is:

100

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Teacher tools

Work it out

Not feeling ready yet? These can help:

U.1Add fractions: denominators 10 and 100

P.10Fractions with denominators of 10 and 100

U.4Add fractions with unlike denominators

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