Converting Decimals to Fractions | Solved Examples

April 27, 2025

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In converting decimals to fractions, we know that a decimal can always be converted into a fraction by using the following steps:

Step I: Obtain the decimal.

Step II: Remove the decimal points from the given decimal and take as numerator.

Step III: At the same time write in the denominator, as many zero or zeros to the right of 1(one) (For example 10, 100 or 1000 etc.) as there are number of digit or digits in the decimal part. And then simplify it.

We can express a decimal number as a fraction by keeping the given number as the numerator without a decimal point and writing 1 in the denominator followed by as many zeroes on the right as the number of decimal places in the given decimal number has.

For example:

(i) 124.6 = \(\frac{1246}{10}\)

(ii) 12.46 = \(\frac{1246}{100}\)

(iii) 1.246 = \(\frac{1246}{1000}\)

The problem will help us to understand how to convert decimal into fraction.

In 0.7 we will change the decimal to
fraction.

First we will write the decimal
without the decimal point as the numerator.

Now in the denominator, write 1
followed by one zeros as there are 1 digit in the decimal part of the decimal
number.

= \(\frac{7}{10}\)

Therefore, we observe that 0.7 (decimal) is converted to \(\frac{7}{10}\) (fraction).

Working Rules for Conversion of a Decimal Into a Fraction:

To convert a decimal into fraction, we follow the following steps
Working Rules

Step I: Write the given number without decimal point as the numerator of the fraction.

Step II: Write 1 in the denominator followed by as many zeros as the number of decimal places in the given number.

Step III: Reduce the fraction into the lowest terms and if required change into mixed numeral.

Solved Examples on Converting Decimals to Fractions

1. Convert 6.75 into a fraction.

Solution:

Numerator of fraction = 675

Denominator of fraction = 100 (Because decimal places are 2, therefore, put 2 zeros after 1.)

So, 6.75 = \(\frac{625}{100}\)

= \(\frac{625 ÷ 25}{100 ÷ 25}\)

= \(\frac{27}{4}\)

= 6\(\frac{3}{4}\)

2. Convert 924.275 into a fraction.

Solution:

Numerator of fraction = 924275

Denomination of fraction = 1000 (Because decimal places are 3, therefore, put 3 zeros after 1.)

Now, 924.275 = \(\frac{924275}{1000}\)

= \(\frac{924275 ÷ 25}{1000 ÷ 25}\)

= \(\frac{36971}{40}\)

= 924\(\frac{11}{40}\)

Worked-out Examples on Converting Decimals to Fractions:

1. Convert each of the following into fractions.

(i) 3.91

Solution:

3.91

Write the given decimal number
without the decimal point as numerator.

In the denominator, write 1
followed by two zeros as there are 2 digits in the decimal part of the decimal
number.

= \(\frac{391}{100}\)

(ii) 2.017

Solution:

2.017

= \(\frac{2.017}{1}\)

= \(\frac{2.017 × 1000}{1 × 1000}\) ⟹
In the denominator, write 1 followed by three zeros as there are 3 digits in
the decimal part of the decimal number.

= \(\frac{2017}{1000}\)

2. Convert 0.0035 into fraction in the simplest form.

Solution:

0.0035

Write the given decimal number
without the decimal point as numerator.

In the denominator, write 1
followed by four zeros to the right of 1 (one) as there are 4 decimal places in
the given decimal number.

Now we will reduce the fraction
\(\frac{35}{10000}\) and obtained to its lowest term or the simplest form.

= \(\frac{7}{2000}\)

3. Express the following decimals as fractions in lowest form:

(i) 0.05

Solution:

0.05

= \(\frac{5}{100}\) ⟹ Write
the given decimal number without the decimal point as numerator.

In the denominator, write 1
followed by two zeros to the right of 1 (one) as there are 2 decimal places in
the given decimal number.

= \(\frac{5 ÷ 5}{100 ÷ 5}\) ⟹
Reduce the fraction obtained to its lowest term.

= \(\frac{1}{20}\)

(ii) 3.75

Solution:

3.75

= \(\frac{375}{100}\) ⟹ Write
the given decimal number without the decimal point as numerator.

In the denominator, write 1
followed by two zeros to the right of 1 (one) as there are 2 decimal places in
the given decimal number.

= \(\frac{375 ÷ 25}{100 ÷ 25}\) ⟹ Reduce the fraction obtained to its simplest
form.

= \(\frac{15}{4}\)

(iii) 0.004

Solution:

0.004

= \(\frac{4}{1000}\) ⟹ Write the given decimal number without the
decimal point as numerator.

In the denominator, write 1
followed by three zeros to the right of 1 (one) as there are 3 decimal places
in the given decimal number.

= \(\frac{4 ÷ 4}{1000 ÷ 4}\) ⟹ Reduce the fraction obtained to its lowest term.

= \(\frac{1}{250}\)

(iv) 5.066

Solution:

5.066

= \(\frac{5066}{1000}\) ⟹ Write the given decimal number without the decimal point as numerator.

In the denominator, write 1 followed by three zeros to the right of 1 (one) as there are 3 decimal places in the given decimal number.

= \(\frac{5066 ÷ 2}{1000 ÷ 2}\) ⟹ Reduce the fraction obtained to its simplest form.

= \(\frac{2533}{500}\)

More Examples on Converting Decimals into Fractions:

Let us consider a few more examples for converting decimals into fractions

STEPS

Step I: Remove the decimal point and write the number as the numerator of the required fraction

Step II: Write 1 as denominator.

Step III: Count the number of digits to the right of the decimal point in the decimal and write the same number of zero to the right of 1 in the denominator

4. Convert 2.7 into a fraction

Solution:

27 = \(\frac{27}{10}\)

= 2\(\frac{7}{10}\)

Therefore, 27 = 2\(\frac{7}{10}\)

5. Convert 32.47 into a fraction.

Solution:

32.47

The denominator will have two zeros to the right of 1 because the decimal has two digits to the right of the decimal point,

32.47 = \(\frac{3247}{100}\)

= 32\(\frac{47}{100}\)

Therefore, 32.47 = 32\(\frac{47}{100}\)