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Mathematics 18 Online
OpenStudy (salina):

Write the repeating decimal 3.15555555 as a fraction?

OpenStudy (anonymous):

put \[x=3.15555...\] \[10x = 31.5555...\] \[10x-x=28.4\] \[9x=28.4\] \[x=\frac{28.4}{9}=\frac{284}{90}\]

OpenStudy (anonymous):

you can check it is right with a calculator

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