Question

can you tell me how to convery ABCD base 16 to base 8?

Answer 1

First convert ABCD to binary
Hexadecimal     Binary
    0           0000
    1           0001
    2           0010
    3           0011
    4           0100
    5           0101
    6           0110
    7           0111
    8           1000
    9           1001
    A           1010
    B           1011
    C           1100
    D           1101
    E           1110
    F           1111
Use this table to convert from hexadecimal to binary
Converting ABCD to binary
A => 1010
B => 1011
C => 1100
D => 1101
So, in binary ABCD is 1010101111001101

Then convert this binary number(1010101111001101) into octal
Adding 2 zeros on left hand side of this number to make it's length a multiple of 3
Octal   Binary
 0           000
 1           001
 2           010
 3           011
 4           100
 5           101
 6           110
 7           111
Use this table to convert from binary to Octal
Converting 001010101111001101 to Octal
001 => 1
010 => 2
101 => 5
111 => 7
001 => 1
101 => 5
So, in Octal 001010101111001101 is 125715
Answer: 125715