Answer:
(84)10 = (1010100)2
Step-by-step explanation
Step 1: Divide (84)10 successively by 2 until the quotient is 0:
84/2 = 42, remainder is 0
42/2 = 21, remainder is 0
21/2 = 10, remainder is 1
10/2 = 5, remainder is 0
5/2 = 2, remainder is 1
2/2 = 1, remainder is 0
1/2 = 0, remainder is 1
Step 2: Read from the bottom (MSB) to top (LSB) as 1010100. This is the binary equivalent of decimal number 84 (Answer).
