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Number System Subtraction
Binary Number Subtraction
Rules for subtracting 2 Binary numbers:
A – B | Diff | Borrow | |
0 1 0 1 | 0 0 1 1 | 0 1 1 0 | 0 0 1 0 |
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Rule:
Whenever a higher bit is to be subtracted from a lower bit, we have to borrow i.e. we have to add (+2) the base (2) of the number system with the lower bit and then perform the subtraction. The impact of borrowing will select in the preceding operation as we move from right to left.
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Do it by yourself first, and then check the solution.
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Also verify,
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And
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And answer is
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Octal Number Subtraction
The rule will be the same as binary subtraction only, instead of borrowing (+2), we will add 8 as the base of the octal system is 8.
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Hexadecimal Subtraction
The rule is the same as that of binary and octal subtraction, only add 16 (+ 16) while borrowing,
e.g.
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