The number above the line in a fraction is called the numerator. The number below the line is called the denominator. So in the fraction 5/7 5 is the numerator and 7 is the denominator.
The vinculum is placed on top of the repeating number after the decimal. For example, 1/3 would be written out as .333333 or .3 with the vinculum above the three.
If the threes go on indefinitely, then it is a repeating decimal, represented by a line over the repeated number, also .333...(going on forever) is equivalent to 1/3
It is -1.2... (repeating).
The line above the number means in Math Terms that the number is repeditive and goes on and never stops.
Vinculum
A Vinclulum
The line over a repeating decimal is called the vinculum.
it is a NumeratorBY:Emily
numerator
The number above the line in a fraction is called the numerator. The number below the line is called the denominator. So in the fraction 5/7 5 is the numerator and 7 is the denominator.
The vinculum is placed on top of the repeating number after the decimal. For example, 1/3 would be written out as .333333 or .3 with the vinculum above the three.
In general it is far from easy. There are, of course, simple examples such as 1/3 which give 0.3 with the 3 repeating, or 1/7 = 0.142857 with the underlined string repeating, and so on. But take a look at this number: 0.010309278350515463917525773195876288659793814432989690721649484536082474226804123711340206185567010309278350515463917525773195876288659793814432989690721649484536082474226804123711340206185567...Actually the number is 1/97 and since the number is rational it must be a repeating decimal. It has a repeating string of 96 digits: the above represents two "laps". The first lap ends, in the second line, just above the letter "e" of the word "number" at the start of this paragraph.This is the worst with a denominator less than 100. You can get a repeating string of any length by choosing a suitable denominator.
The line above the total is called the subtotal. It is referred to as above-the-line. It does not include deductions or taxes.
real number
The numerator in a fraction is above the line.
The top number is called the numerator and the bottom number called the denominator. The line that usually separates the numerator and denominator. If slanting it is called a solidus or forward slash, for example 3⁄4. If the line is horizontal, it is called a vinculum or, informally, a "fraction bar"