Explain how to write the rational number 3.21 as a fraction
Mathematics · High School · Thu Feb 04 2021
Answered on
Given the number:
3.21
Write as a fraction.
Solution:
In order to write the given number as a fraction, we can first write it as a mixed number. To do so, we exclude the whole number, and focus on the fraction part. Treat .21 as a whole number, and divide it by 100, since .21 is in the hundredths place.
3.21
= 3 21/100
To change the mixed number into improper fraction, we multiply 3 to the denominator, and then add the product to the numerator.
= 321/100
Final answer:
= 3 21/100 or 321/100