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91Ó°ÊÓ

In the following exercises, write each repeating decimal as a fraction.

0.36¯

Short Answer

Expert verified

The repeating decimal as a fraction is411

Step by step solution

01

Step 1. Given information

The given repeating decimal is0.36¯

02

Step 2. Use place value to write this as a sum.

0.36¯=0.36363636...=0.36+0.0036+0.000036+0.00000036+...

This is the sum of infinite series of G.P.

03

Step 3. Write the repeating decimal as a fraction.

We will find the sum of infinite G.P. to write the repeating decimal as a fraction.

a=0.36r=0.00360.36r=0.01

So the sum is

S=a1-rS=0.361-0.01S=0.360.99S=3699S=411

Therefore, the repeating decimal as a fraction is411.

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