What is decimal number
Decimal number simple means a number that base on the number 10.
Example: 123 = 100+20+3 = 1*10²+ 1*10¹ + 3*10⁰ = 123
What is a binary number
A number that made by 1s and 0s.
Example: 101 = 1*2² + 0*2¹ + 1*2⁰ = 5
How to convert decimal number to binary number
Divide the decimal number by 2, update the decimal number to quotient until 0 and keep tracking the reminder. The reversed reminder will be the answer.
Example: Given 5 convert to a binary number, the answer is 101.
How to convert binary number to decimal number
To convert a binary number to decimal, simply sum the binary digits together.
Example: Given 100 convert to decimal number, the answer is 4.