Hello,
Numbers found by the ratio of a real number to a real number are called "Rational Numbers". As it is clearly seen in this question, the sum of two different rational numbers, the ratio of 9 to 2 and the ratio of 1 to 2, is asked.
Before we begin, let's examine the concepts of numerator and denominator.
Numerator: the part of a fraction that is above the line and signifies the number to be divided by the denominator.
Denominator: the part of a fraction that is below the line and that functions as the divisor of the numerator.
Example:
[tex]\frac{a}{b}[/tex]
In the above expression, the variable [tex]"a"[/tex] represents the numerator and the variable [tex]"b"[/tex] represents the denominator.
Now we can solve the question. Let's get the result by adding the two given rational numbers.
[tex]\frac{9}{2}+\frac{1}{2} =\frac{9+1}{2} =\frac{10}{2}=5[/tex]