Definition
Recall that a proper fraction is a fraction where the numerator is smaller than the denominator;
For example, 35.
Here numerator 3 is smaller than denominator 5.
Rules to convert a decimal to a proper fraction without simplifying.
- We drop the decimal point and write the number as the numerator of a fraction.
- We take the place value of the last digit of the decimal number and write it as the denominator of the fraction.
Example 1
Convert decimal 0.28 to a proper fraction without simplifying.
Solution
Step 1:
We drop the decimal and write the number 28 as the numerator of a fraction.
Step 2:
The place value of the last digit 8 is a hundredth. So, we write 100 as the denominator of the fraction to get
0.28=28100 withoutsimplifying
Example 2
Convert decimal 0.75 to a proper fraction without simplifying.
Solution
Step 1:
We drop the decimal and write the number 75 as the numerator of a fraction.
Step 2:
The place value of the last digit 5 is a hundredth. So we write 100 as the denominator of the fraction to get
0.75=75100 withoutsimplifying
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