Recurring Decimals (2)
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• Introduction
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A recurring decimal is one that repeats itself forever. We use dots above the decimal numbers to show how it repeats. Look at the following table to see how the notation works.

Remember that for three recurring numbers, we only place dots on the first and last digits.

Example 1

Write the following recurring decimal as a fraction:

Answer

Let             x =   0.5454545454545454....

Then  100x = 54.5454545454545454...

Now subtract both sides to get rid of the recurring part of the decimal, leaving:

99x = 54

So x = 54/99 = 6/11 in its lowest terms.

Example 2

Write the following recurring decimal as a fraction:

Answer

Let             x =     0.405405405405....

Then  1000x = 405.405405405405...

Notice that because 3 digits recur, we have to find 1000x not 100x.

Now subtract both sides to get rid of the recurring part of the decimal, leaving:

999x = 405

So x = 405/999 = 15/37 in its lowest terms.

Notice that....

=   5/9

=   54/99

=   405/999

• Question 1
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 2
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 3
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 4
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 5
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 6
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 7
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 8
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 9
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

• Question 10
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Write the following recurring decimal as a fraction in its lowest terms.

(Write your answer as a reduced fraction in the form a/b)

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