Exam-style question
Try this first
A fixed-point number uses 8 bits with the binary point after the first 4 bits. What decimal value is represented by 0101.1010?.
- A.5.25
- B.5.625
- C.5.75
- D.10.625
Model answer
What a good answer should say
- 5.625
Explanation
Why this works
The integer part 0101 is 5. The fractional part .1010 is 1/2 + 1/8 = 0.625.
Therefore, the value is 5.625.
Common mistake
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