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How do you write 9/20 as a decimal?

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72
Apr 2, 2018

Answer:

#9/20 = 9 -: 20 = 0.45#

Explanation:

Another way to look at this is:

#9/20 = 9/20 xx 5/5 = (9 xx 5)/(20 xx 5) = 45/100 = 0.45#

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Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources
preview
?

Answer

Write a one sentence answer...

Answer:

Explanation

Explain in detail...

Explanation:

I want someone to double check my answer

Describe your changes (optional) 200

3
Ujjwal Share
Apr 2, 2018

Answer:

0.45

Explanation:

#9-:20#

#=> 9/20#

Convert the denominator into powers of 2 and 5.

#=> 9/(2xx2xx5#

#=> 9/(2^2xx5^1#

Now multiply both numerator and denominator with 5 to make the powers of 2 and 5 equal.

#=> (9xx5)/(2^2xx5xx5#

#=> 45/(2^2xx5^2#

You can combine the bases with same powers

#=> 45/10^2#

#=> 45/100#

#=> 0.45#

Hope it helps

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