Answer
The missing number that makes the fractions equal is 11.
Explanation
We are told to find the missing number that makes the fraction (14/42) equal to (/33).
Let the missing number be x.

So, the first step to solving this is to multiply both sides with 42, or cross multiplying.

Either ways, we end up with the equation
14 × 33 = 42 × x
462 = 42x
We can re-arrange this to make it easier as
42x = 462
Divide both sides by 42
(42x/42) = (462/42)
x = 11
Hope this Helps!!!