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Mathematics 15 Online
jaynater:

How I convert a decimal to a fraction?

Nicoley269:

..... what kind of number?

jaynater:

decimals, whole numbers, and mixed fractions

Nicoley269:

Give me examples then i can hep you

dude:

Let x equal the decimal. Set up two equations such that the digits after the decimal point are identical.

dude:

Ex. \(0.\overline{7}\) \(10x =7.777...\) \(1x=0.777\) Now subtract them \(10x =7.777...\) -\(1x=0.777...\)


=> \(9x=7\) Now divide by 9 on both sides \(\large x=\frac79\)

dude:

\(\frac79=0.\overline{7}\)

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