Question

0.8 divided by 0.64.

Answer 1

IT's just a simple conversion.
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Ok. So, when you divide with decimal places, you have two options - 
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Suck it up and divide, or move the decimal places to the right as many times as needed, until the number is a whole number. 
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Choosing to move the decimal places to the right is the easy way out... 
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So?
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Move decimal point to the right two places in both numbers!!
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80 and 64.
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So what is 80/64?
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You got it!!
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1.25.
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Hope I helped!!

Answer 2

.8 divided by .64 is 1.25