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Math Help - Binary

  1. #1
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    Binary

    How do i convert decimal numbers to binary?

    I mean numbers like 1.5 or 1.25
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by jzellt View Post
    How do i convert decimal numbers to binary?

    I mean numbers like 1.5 or 1.25
    Keep multiplying the decimal part by 2:

    1.5_{10}=1_2+(.5)_{10}

    Now,

    \begin{aligned}.5\times 2 & = {\color{red}1}\text{ R } {\color{blue}0}\\ {\color{blue}0}\times 2 &= {\color{red}0} \text{ R } {\color{blue}0}\\ \vdots\end{aligned}

    So it follows that .5_{10}=.1_2. Thus, 1.5_{10}=1.1_2

    Do something similar for 1.25_{10}

    Can you take it from here?
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