To compare \(-1 \frac{1}{2}\) (which is \(-1.5\)) and \(-\frac{1}{2}\) (which is \(-0.5\)), we can write them as decimals:
- \(-1 \frac{1}{2} = -1.5\)
- \(-\frac{1}{2} = -0.5\)
Now we compare the two values:
\(-1.5\) is less than \(-0.5\).
So, it is correct to say:
\[ -1 \frac{1}{2} < -\frac{1}{2} \]
Thus, the statement "−1 1/2 is less than −1/2" is true.