garnentas3m

2021-12-28

How do you change -1/2 into a decimal?

boronganfh

Beginner2021-12-29Added 33 answers

A decimal is another way to write a fraction whose denominator is a power of 10, so if you want to change a fraction to decimal first thing is to see if you can reduce or expand the fraction to get such denominator:

In this case to get a deniminator of 10 you only have to multiply numerator and denominator by 5

$-\frac{12}{=}-\frac{1\cdot 5}{2\cdot 5}=-\frac{5}{10}=-0.5$

However this method does not always work. A method that works for every fraction is to calculete the long division of numerator and denominator to see if the decimal is finite. For example:

$2:3=0.666\dots$

In this case to get a deniminator of 10 you only have to multiply numerator and denominator by 5

However this method does not always work. A method that works for every fraction is to calculete the long division of numerator and denominator to see if the decimal is finite. For example:

Stella Calderon

Beginner2021-12-30Added 35 answers

You can do this through division; $-\frac{12}{}$ is actually just a division problem:

$-\frac{12}{=}-1\xf72=-0.5$

nick1337

Expert2022-01-08Added 777 answers

I got it. thanks

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