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Algebra (all content)

Course: Algebra (all content)>Unit 1

Lesson 14: Binary and hexadecimal number systems

Converting from decimal to binary

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• Can fractions be converted from decimal to binary ?
How ?
What are binary equivalents of some famous numbers in decimal system like pi, e, phi, sqrt(2) ?
• At , Do you say the number literally one,one,zero,one? Or would it be okay to say one thousand, one hundred and one?
• thousands, hundreds, millions, billions are terms used in based-10 number system. So we dont really say those when we deal with binary, at least we are not supposed to. But in your mind you can use those terms if they help.
• what if i wanted to convert 0.46 from decimal to binary?
• 0.46 is not a dec. Is'a a double. Right?
• I'm pretty confident now converting binary to decimal and vice versa, but you often see people converting actual text to binary, how is this done? I know online converters can be used but what is this process? I don't suppose Khan has a video on this?
• Hi how are you
• Then How do you convert 8 when there are 2 4s
• there is another way to convert the decimal num to binary num
ex: you have 13 and you want to convert it to binary
13 / 2 = 6 R 1
6 / 2 = 3 r 0
3 / 2 = 1 r 1
1 / 2 = 0 r 1
read from the bottom to the top it is 1101
(1 vote)
• But what if you wanna convert a decimal which <0 to binary? do we just simply add a '-' before the binary ?
• What happens if you run out of letters in the alphabet to represent numbers?
• You can take letters from other languages or come up with new symbols...
(1 vote)
• I just want to clarify this: Does the binary system consist of only 1's and 0's?