Question

How do you convert $ 0.38 $ into percent and fraction?

Answer 1

Hint: In order to calculate percentage multiply the given number with 100 and to convert into fraction divide the number with 10 raised to the power no of digits after decimal and remove decimal point.

Complete step-by-step answer:
Given a decimal number $ 0.38 $ .
So in order to convert any decimal number into percent multiply it with 100 and add % symbol in the end
Here our decimal number is $ 0.38 $
 $
   = 0.38 \times 100 \\
   = 38\% \;
  $
Therefore decimal number $ 0.38 $ in percent is $ 38\% $
Now to Convert $ 0.38 $ in to decimal divide $ 0.38 $ with 10 raised to the power 2 as there are 2 digits after decimal and remove decimal point
 $
   = 0.38 \\
   = \dfrac{{38}}{{100}} \;
  $
Simplifying the fraction
 $ = \dfrac{{19}}{{50}} $
Hence , $ 0.38 $ in percent is $ 38\% $ and fraction is $ \dfrac{{19}}{{50}} $ .
Formula Used:
 $ p = n \times 100 $
Here p is the percentage , n is the decimal number.
Alternative:
 If you don’t want to multiply, we have another way to calculate percentage i.e. by moving the decimal point 2 places in the right
For example: Calculate 0.78 into percentage
Decimal number =0.78
Now ,move the decimal point two places towards the right and add $ \% $ at the end of the result.
 $ = 78\% $
So, the correct answer is “ $ = 78\% $ ”.

Note: 1. Don’t forget to place a % sign at the end of the result.
2. To calculate fraction from the percentage , divide the given percentage value by 100
For example : We have to write $ 70\% $ into fraction
 $
   = \dfrac{{70}}{{100}} \\
   = \dfrac{7}{{10}} \;
  $
Or
 $ = 0.7 $
3. If you want to Increase a Number by y %:
Example:
On the off chance that a number is expanded by\[10{\text{ }}\% \], at that point it becomes 1.1 times of itself.
On the off chance that a number is expanded by 30 %, at that point it becomes 1.3 times of itself.
4. If you want to Decrease a Number by y %:
Example:
On the off chance that a number is diminished by 10 %, at that point it becomes 0.90 times of itself.
On the off chance that a number is diminished by 30 %, at that point it becomes 0.70 times of itself.