How do you read \[\dfrac{{dy}}{{dx}}\] ?

Hint: Just read the given fraction and write it.





Complete step by step solution:The given expression is \[\dfrac{{dy}}{{dx}}\]. The variables are x and y.
  The given expression denoted that y is derivative with respect to x.
Some of us pronounced the given fraction as “dy by dx” or “dy over dx”.
But the correct pronunciation is “dy dx”.



Option ‘dy dx’ is correct

Note: The given expression looks like a fraction. But it is not a function. It represents an operation over y.