# WRITING RATIONAL NUMBERS AS DECIMALS

## About "Writing rational numbers as decimals"

Writing rational numbers as decimals :

A rational number is a number that can be written as a ratio of two integers a and b, where b is not zero. For example, 4/7 is a rational number, as is 0.37 because it can be written as the fraction.

## Writing rational numbers as decimals - Examples

Example 1 :

Write the rational number -5/16 as a decimal.

Solution :

Divide 5 by 16.

Add a zero after the decimal point. Subtract 48 from 50. Use the grid to help you complete the long division.

Add zeros in the dividend and continue dividing until the remainder is 0.

The above explained process has been illustrated in the picture given below.

The decimal equivalent of -5/16 is - 0.3125.

Example 2 :

Write the rational number 13/33 as a decimal.

Solution :

Divide 13 by 33.

Add a zero after the decimal point. Subtract 99 from 130.  Use the grid to help you complete the long division.

Write the quotient with its repeating pattern and indicate that the repeating numbers continue.

The above explained process has been illustrated in the picture given below.

The decimal equivalent of 13/33 is  0.3939..................

Example 3 :

Write the rational number 60/75 as a decimal.

Solution :

Divide 60 by 75.

Add a zero after the decimal point. Subtract 600 from 600.

When we do so, we get the remainder 0.

The above explained process has been illustrated in the picture given below.

Hence, the decimal form the rational number 60/75 is 0.8.

Example 4 :

Write the rational number 6 3/4 as a decimal.

Solution :

Take the fractional part 3/4

Divide 3 by 4.

Add a zero after the decimal point. Subtract 28 from 30.

Add zeros in the dividend and continue dividing until the remainder is 0.

The above explained process has been illustrated in the picture given below.

The decimal equivalent to the fractional part 3/4 is 0.75.

Hence, the decimal form the rational number 6 3/4 is 6.75.

After having gone through the stuff given above, we hope that the students would have understood "Decimal forms of rational numbers".

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