32/15 is one possible answer.
Yes.
It is 332/15.
If you mean 7/8 then 7/8 times 8/7 = 1
you could do 45 multiplied by 2 and nine multiplied by 2 so your answer should be 18/90
Yes, that is how a rational number is defined.
It should not.
Yes
4/4
4---4
three thirds
Because irrational numbers are defined as real numbers which are not rational.
from another wikianswers page: say that 'a' is rational, and that 'b' is irrational. assume that a + b equals a rational number, called c. so a + b = c subtract a from both sides. you get b = c - a. but c - a is a rational number subtracted from a rational number, which should equal another rational number. However, b is an irrational number in our equation, so our assumption that a + b equals a rational number must be wrong.