Evaluate 3/7r + 5/8s when r = 14 and s = 8 the answer is 6+5=11 i don't understand the solution. i am confused as to what i thought was multiplying fractions with whole numbers, which i thought you multiply the variable(whole number) by the numerator, whereas the solution in this case for the numerator is just a repeat of the variable. i've included a wiki post on multiplying fractions with whole numbers.

let us first plug the values of r and s here

r=14 and s=8

Now here we can cancel 14 and 7 as 7*2 =14 , also we can cancel 8 and 8 as 8*1 is 8, so our simplified new form is:

Now we can multiply 3*2 and 5*1

3*2 =6

5*1=5

Next we add the two numbers

6+5 =11

So this is how we get the answer 11

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

answer is : muchas/tipicas

have a nice day!

~recklesschicken