Ratio is a comparison of two values or two quantities.
Fraction is a another form of ratio.
The first term and the second term in the ratios are important.
It should not be changed.
The first quantity value is in first term and the second quantity value is in second term of the ratio.
Ratio and fractions are same.
Example:
The ratio of male to female in the school is 5 : 6.
5 represents male students and 6 represents female students.
The fraction form of the above ratio is 
Just divide it and you will get the answer
Answer:
Simplifying the expression
we get 
Step-by-step explanation:
We need to simplify the expression 
Solving:

Applying exponent rule: 

Factors of 
Factors of 
Replacing terms with factors

Using exponent rule: 

Using exponent rule: 

Now using exponent rule: 

So, simplifying the expression
we get 
Answer:

Step-by-step explanation:

Answer: just multiply 9 and y together: 9 x y