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We can also represent fractions in another form. (Not
with a nominator, fraction bar and denominator) We do this, with so called
decimal fractions. These are nothing more than a few digits with a comma in
a certain place. Whole numbers stand in front of the comma (for example, 1,
2, 3,… , 25,…) the first digit after the comma, ( 25,5 for example)
shows the tenth part. This means we have 25 wholes and 5 tenths. The second
digit after the comma shows the hundredths (25,54 for example, which
means 25 + ). The third digit shows the thousandths (25,547
for example, which is 25 + ) so on and so forth.
We can also transform normal fractions into decimal
fractions. We do this, by either shortening or extending the fraction to
tenths, hundredths, thousandths etc.
Example:
If this procedure does not work or can only be carried
out difficulty, we can help ourselves by using division. Examples here to:
= 5 : 16 = 0,3125
A little more difficult (but not much) is the same
procedure with the cycles/periods. A definition of periods: Periods are
repeated numbers or numerical order, after the comma for example:
0,33333333333… in this case there are no tenths or hundreds but instead, we
have ninths and ninety ninths so on and so forth.
Examples of transforming periods:
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