Answer:
Explanation:
multiplying something by 1/2 is the same as multiplying by 0.5, so 0.5x4 = 2. you can think of it like this:
0.5 x 4 = 2, because 2 0.5s fit in a 1, so 4 0.5s fit into 2. it is really the same as just halfing the number, because if you were to multiply it by 1 it would stay the same, multiply it by 2 it would double, so multiply it by 0.5 and it will half. hope that helps