It means recurring, so rather than writing out an endless line of 3s, 3.333333333333 etc they would write the 3.333 with the last 3 having a line over it.
Chat with our AI personalities
A line over a whole number means that number repeats for an infinite number of times.
if used in a decimal it means that the number it is over is repeating ex) 27.33333333333333 instead you could write 27.3 with a line over the 3
The line is usually taken to mean that the decimals under the line repeat. And yes, such a number is rational, since it can be converted into a fraction (with whole numerator and denominator).
The line over a fraction number means division. For example 2/4. 4 divided by 2 is 2. Add to the the numerator and you get 4/4. 4/4 is equal to one whole.
9/10