Final answer:
To convert decimal to binary, divide by 2 repeatedly. To convert binary to decimal, multiply each digit by the appropriate power of 2 and add the results. To convert binary to hexadecimal, group binary digits into sets of 4 and convert each group to its equivalent hexadecimal digit.
Step-by-step explanation:
To convert a decimal number to binary, divide the decimal number by 2 repeatedly until the quotient becomes 0. The remainders, read from bottom to top, form the binary representation. For example, 255 in decimal is 11111111 in binary.
To convert a binary number to decimal, multiply each digit of the binary number by the corresponding power of 2 and then add all the results. For example, 11101000 in binary is 232 in decimal.
To convert a binary number to hexadecimal, divide the binary number into groups of 4 digits. Each group is then converted to its equivalent hexadecimal digit. For example, 10101010 in binary is AA in hexadecimal.