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

Question

A.By printing them in italics
B.By underlining them
C.By putting a bar over them
D.By putting them in parentheses

Answer 1

C. By putting a bar over them

In mathematics, repeating digits in a repeating decimal are typically shown by placing a bar (or vinculum) over the digits that repeat. For example, the decimal \(0.\overline{3}\) represents \(0.333...\), where the "3" repeats indefinitely.

Answer 2

So which one?

Answer 3

The correct answer is C. By putting a bar over them.