Anything from 6.5 to 7.4
your dumb if you don't know how to round decimals on a number line
Any whole number, any number with a finite number of decimals, and some numbers with an infinite number of decimals, are rational.
Well, honey, you can't magically turn 71.25 into a whole number. If you want a whole number, you gotta round that sucker up or down. So, if you round 71.25 down, you get 71. If you round it up, you get 72. But either way, you ain't getting a whole number out of 71.25 without some rounding action.
Decimals occupy the spaces between whole numbers; they are bigger than some, and smaller than some others.
If you are making use of long division method, the process of dividing a whole number is actually a subset of the process of dividing the decimals. While dividing both you may get a quotient with decimal places. Some exceptions to this do exist in case of whole numbers. Like when you are dividing 100 by 2, the quotient 50 has no decimal places.
Most decimals comprise an infinite number of digits: some are repeating and other non-terminating. If you did not round them, most people would still be writing out their first decimal number - and they would still be at it when they died!
Yes. A whole number is any number (positive or negative) that doesn't have a fraction or decimal. Some examples of whole numbers are 2, -2, 5, 7, 19943.
Well, darling, 9.5 is closer to 10 than it is to 9, so the nearest whole number is 10. But hey, don't worry, I won't judge if you were hoping for a different answer. Just remember, math doesn't lie, unlike some people I know.
ANY number with a finite number of decimals (and some that have an infinite number of decimals) are rational.
Some people find it easier to add or subtract whole numbers but yes, you could round to the nearest half.
Not quite sure what you want; the calculator only shows a limited number of decimals in any case. Some calculators have options to round the result to a certain number of decimal places. If that's what you want, check your calculator's manual for details.
Most fractions CANNOT be converted to a whole number, simply because they aren't whole numbers. For example, 1 1/2 is between the whole numbers 1 and 2. It is NOT equal to either 1 or 2 - or to any other whole number for that matter. Of course, you can round it to the nearest whole number, but that's not the same as "converting" it. Some numbers may be written as a fraction, but may in fact be whole numbers. For example, 6/2. In this case, just divide the numerator by the denominator - in this case, divide 6 by 2 - to get the equivalent whole number. But if the division has a remainder (when calculating on paper) or you get a number with decimals (if calculating on a calculator), then the number is NOT a whole number, and therefore you can NOT convert it to a whole number.