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If there is a line over a decimal, it means the decimal is repetitive.

If you are typing it would look like this...

.7

Q: What is the line over a repetitive decimal?

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Either, the decimal with a line over what's repeating (eg. 0.6 with a line over it), or decimal repeating (eg. "point six repeating").

A bar.

periodic line

.833 IS a repeating decimal. This is a rational number as well as it has a repetitive pattern.

If handwritten, draw a line over the repeated numbers.

Related questions

The line over a repeating decimal is called the vinculum.

You would write it as 7.7 with a dot over the second 7.

Either, the decimal with a line over what's repeating (eg. 0.6 with a line over it), or decimal repeating (eg. "point six repeating").

A bar.

periodic line

a repetitive event is something that happens over and over.

A line over the decimal part of a number indicates that there is a part that recurs infinitely many times. Such numbers are rational.

.833 IS a repeating decimal. This is a rational number as well as it has a repetitive pattern.

Repetitive means to repeat, or do something more than once, so repetitive work is something that you do over and over.

The line over the digits that repeat in a repeating decimal.

It is placed over one length of repeating decimal digits.

It means repeat that decimal forever with it's last digit.