How do you divide 0.85\div 50.85÷5?

1 Answer
Dec 16, 2016

0.17

Explanation:

0.850.85 can be written as 85/10085100. That's where the decimal point comes from.
The number of zeroes is the same as the number of digits after the decimal, if the zeroes are in the denominator.

So, 0.85div50.85÷5 can be written as 85/100xx1/5 = cancel(85)^17/100xx1/cancel(5)_1 = (17xx1)/(100xx1) = 17/100 = 0.17