You have to find common denominators. We can look at 3 and 7 and we know that nothing X 3 would equal to seven. So, we have to multiply 2/3 X 7 + 5/7 X 3 When we do that, we get 14/21 + 15/21 So when we add, the answer is 29/21 When we look at that, we have to see if it can be reduced. We know that both 7 and 3 can go into 21 but can they go into 29? No, so therefore, the answer cannot be reduced Final answer is 29/21
The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0.
