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Rounding to the nearest 1/2 inch

When measuring a line with a ruler. When the question asks you to round to the nearest 1/2 inch, how do you determine if it is the nearest whole number or the nearest 1/2 number? Is the answer always a whole number?

Solution This solution is FREE courtesy of BrainMass!

When you need to round to the nearest half inch, you are rounding to either the whole number (X) or to the half number (X.5).

In order to determine, you look at the number. If it is between 0 and 0.2444444444 you would round to the lower number. If it is between .25 and .744444444444 you would round to the half. If it is between .75 and .999999999 you would round to the next highest number.

So, for example, if you had 1.05, you would round to 1. If you had 1.243, you would round to 1. If you had 1.246 you would round to 1.5. If you had 1.54 you would round to 1.5.

However, inches are not in decimals, but in a set of 12 integers.

So, if it is between 0 and 1/4 inch, it is rounded to the lower number. If it is between 1/4 and 3/4 inch, you round to the half. If it is more than 3/4 inch, you round to the next highest whole number.