### Conversion of Decimal Numbers into Binary or Hexadecimal Numbers

Question Sample Titled 'Conversion of Decimal Numbers into Binary or Hexadecimal Numbers'

# Convert decimal numbers into binary numbers

By short division: divide the number by ${2}$ repeatedly until the quotient is smaller than ${2}$. The answer will be joining all remainders from the tail to the head. For example, the binary form of ${156}$ is ${10011100}_{{2}}$ .

# Convert decimal numbers into hexadecimal numbers

Similar to the above: divide the number by ${16}$ repeatedly until the quotient is smaller than ${16}$ . The answer will be joining all remainders from the tail to the head.

Note: You must also convert the remainders which are larger than ${10}$ to hexadecimal digit. For example, you must write ${13}$ as ${D}$ .

You should use calculator to help in exam.

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