To solve this equation, the first thing we have to do is to convert percentages to decimals because we are doing mathematical operations with a fraction.
To convert a percentage to a decimal, we just divide by 100. So, 60% equals 0.60, and 25% equals 0.25.
Next, we subtract these values from 1/2.
So, we have the following steps:
1. Calculate 1/2 - 0.60 (which is the decimal equivalent of 60%). This gives us -0.10.
2. Then subtract 0.25 (which is the decimal equivalent of 25%) from the result. So, -0.10 - 0.25 equals -0.35.
Therefore, 1/2 - 60% - 25% equals -0.35.