Among all fractions x that have a positive integer numerator and denominator and satisfy 9/11 ≤ x ≤ 11/13 which fraction has the smallest denominator?
plz wiil mark brainiest

We want to find a fraction a/b such that

This is true if and only if

We can choose a value for a only if the two extremes include at least one integer, i.e. if

Solving for b, we have

So, the smallest fraction is given for . We have

Solving for a, we have a=30.

The fraction 30/36 can be simplified to 5/6. So, we have

and this is the smallest possible denominator.

7

step-by-step explanation:

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13