Exam-style question
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What decimal value is represented by the 8-bit fixed-point number 0010.1100, where the binary point is after the first 4 bits?.
- A.2.25
- B.2.5
- C.2.75
- D.3.5
Model answer
What a good answer should say
- 2.75
Explanation
Why this works
The integer part is 0010, which is 2. The fractional part .1100 is 1/2 + 1/4 = 0.75.
The total is 2.75.
Common mistake
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