Which of the following is not equivalent to -1/2
A. -1/-2 B. -[1/2] C. 1/-2 D.-0.5
The answer is A
The answer is A
Correct.
To determine which of the options is not equivalent to -1/2, let's simplify each option:
A. -1/-2 = 1/2
B. -[1/2] = -1/2
C. 1/-2 = -1/2
D. -0.5 = -1/2
After simplifying all the options, we can see that each of them is equivalent to -1/2. Therefore, the correct answer is A.
To determine which of the following options is not equivalent to -1/2, let's simplify each expression:
A. -1/-2: To simplify this expression, we can multiply the numerator and denominator of -1/-2 by -1, which gives us 1/2. Therefore, this option is equivalent to 1/2 and not -1/2.
B. -[1/2]: Here, we are asked to find the negative of 1/2. By placing the fraction in brackets, it indicates that the negative sign applies to the entire fraction. Thus, -[1/2] is equal to -1/2.
C. 1/-2: To simplify this expression, we can divide 1 by -2, which gives us -1/2. So, option C is equivalent to -1/2.
D. -0.5: Since -0.5 and -1/2 are the same numerical value, this option is equivalent to -1/2.
After evaluating each option, we find that option A, -1/-2, is not equivalent to -1/2 as it simplifies to 1/2 instead. Therefore, the correct answer is option A.