How do you show the group of digits that repeat in a repeating decimal?

Question

options:

by printing them in italics
by printing them in italics

by putting a bar over them
by putting a bar over them

by underlining them
by underlining them

by putting them in parentheses

Answer 1

The correct way to show the group of digits that repeat in a repeating decimal is:

by putting a bar over them.

For example, the decimal \(0.666...\) can be written as \(0.\overline{6}\).