The binary equivalent of the decimal number 0.4375 is —
2022
The binary equivalent of the decimal number 0.4375 is —
- A.
0.0111
- B.
0.1011
- C.
0.1100
- D.
0.1010
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Correct answer: A
Convert 0.4375 to binary by multiplying the fractional part by 2 and recording the integer parts:
0.4375 × 2 = 0.875 → bit 0
0.875 × 2 = 1.75 → bit 1
0.75 × 2 = 1.5 → bit 1
0.5 × 2 = 1.0 → bit 1
Collect the bits after the point (in order): 0.0111
Alternate method: express 0.4375 as a sum of negative powers of 2:
0.25 = 2⁻2 → binary 0.01
0.125 = 2⁻3 → binary 0.001
0.0625 = 2⁻4 → binary 0.0001
Summing these binary fractions: 0.01 + 0.001 + 0.0001 = 0.0111
Therefore, the binary equivalent of 0.4375 is 0.0111