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Take any fraction x/y and multiple that by it's reciprical, y/x. The result is x*y/x*y, or one. so any positive fraction multiplied by it's reciprical is one. hope that helped :)
Suppose x and y are two POSITIVE numbers so that -x and -y are negative. Then a negative minus a negative = (-x) - (-y) = -x +y If x > y the answer is negative If x = y the answer is zero If x < y the answer is positive
2
No, it can also be zero or negative, depending on their magnitudes.
Let X = *positive number 1* Let Y = *positive number 2* X times Y