BAR NOTATION

Definition of Bar Notation

The process of writing repeating decimals or repeating pattern of digits by using a bar is called Bar Notation.

More About Bar Notation

  • Bar notation can be put with single or multi-digit repeating numbers or repeating patterns of decimals
  • For a single-digit repeating decimal, the repeating number is written once and a bar is put over it
  • For a multi-digit repeating decimal, the repeating pattern is written once and a bar is put over the digits from the first to the last one

Video Examples: Bar Notation


Examples of Bar Notation

  • 2/3 = 0.666666 and can be written as 0.
  • 3/7 = 0.428571428571428571 and can be written as 0.

Solved Example on Bar Notation

Ques: Which of the following is the correct bar notation for the number 4.13333?

    Choices:

    Correct Answer: B

Solution:

    Step 1: For a single-digit repeating decimal, the repeating number is written once and a bar or dot is put over it.
    Step 2: In 4.13333, only 3 is repeating.
    Step 3: So, a bar can be put on 3 and the correct bar notation would be