Write python function named compare that compares two fractions. The function should take two fractions (represented as tuples) as arguments and return an integer. If the first argument is smaller than the second argument the function should return -1, if the first argument is larger than the second the function should return 1, if the first argument is equal to the second argument the function should return 0. For example

compare( (1,2), (1,3))

should return 1 since 1/2 is greater than 1/3.

Any computations that you do inside the functions need to involve only integer mathematics. You mustn't just divide the numerators by denominators and compare resulting decimal numbers. It may look like a briliant idea but it isn't.