I don’t know how to handle this Algebra question and need guidance.

1. How is multiplying/dividing rational expressions similar to multiplying/dividing fractions? How is adding/subtracting rational expressions similar to adding/subtracting fractions?

2. How do you solve rational equations?

3. In the rational expression,

4x 8x2+4x 12

, why is it incorrect to cancel the 4x in the numerator with the 4x in the denominator? How would you correctly simplify this rational expression?