Well, isn't that a happy little question! Let's turn 0.642 into a fraction. We can see that 0.642 is the same as 642/1000. Now, we can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which is 2. So, 0.642 as a fraction is 321/500. Happy painting!
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0.642 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its rational equivalent is 642/1000 which can be simplified, if required.
A decimal number is not an integer. An integer is a number that is not a fraction, and decimal numbers are decimal fractions.
The relationship between fractions and decimals can be seen as follow. Fractions can be represented as ratio of two numbers and on dividing can give a decimal value. And decimal value can be converted into a fraction too.
it facilitates arithmetic calculations using fractions. Especially with calculators.
No, it is not.
It's because decimals are really fractions and all numbers get smaller when you multiply them by fractions.