How do you find the place value of the denominator
Any number in the form ,where regraded as a fraction where p is called numerator and q is called denominator.
We abbreviate the common fraction by writing the decimal fraction 0.1; both values are read as "one-tenth". We call the first place-value after the decimal point the tenths position. Notice that the decimal place values end in -ths. Tens are whole values and tenths are fractional parts of the whole.
If we extend to the right one more column, that value would have to be the value that when we multiply it by ten it would equal one-tenth. That means the next column to the right would be the hundredths, since . We abbreviate the common fraction as the decimal fraction 0.01. Again notice the "ths" ending. Hundreds are whole values and hundredths are fractional parts of the whole.
But when we write numbers without the table labels, we need to know where the place values change from whole numbers to fractions. That is the role of the decimal point. The decimal point separates the place values that are whole values on the left from the place values that are fractional parts on the right.
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