Question

E. Convert: 1. Decimal number 142 into binary number
2. Binary number 1001100 into decimal number
3 Decimal number 156 into binary number
4. Binary number 1010111 into decimal number
5 Octal number 65 into binary number
6 Binary number 111110 into octal number
7 Binary number 1011110 into hexadecimal number
Hexadecimal number 2B into binary number 8.​

Answer 1

Answer:

1)Step 1: Divide (142)10 successively by 2 until the quotient is 0:

142/2 = 71, remainder is 0

71/2 = 35, remainder is 1

35/2 = 17, remainder is 1

17/2 = 8, remainder is 1

8/2 = 4, remainder is 0

4/2 = 2, remainder is 0

2/2 = 1, remainder is 0

1/2 = 0, remainder is 1

Step 2: Read from the bottom (MSB) to top (LSB) as 10001110.

So, 10001110 is the binary equivalent of decimal number 142 (Answer)