17.20 is a decimal itself, or without redundant 0s at the back, use 17.2.
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1720 as a decimal is 1720.0 and as a percent is 172000%
0.45 = 45/100. The greatest common factor of 45 and 100 is 5 and dividing both by 5 gives 9/20.A decimal number is a way of representing a number in such a way that the place value of any digit is ten times that of the digit in the place to its right. If it does not contain a fractional part then the decimal representation does not require a decimal point. So the decimal for 1720 is 1720 – exactly as in the question.
1720 as a percent is 172,000% if you mean 17.20, then the answer is 1720%
There are 60 minutes in one hour. Therefore, 1720 minutes is equal to 1720/60 = 28.6 recurring (that is, 28.6666...) hours or 28 hours 40 minutes.
172,000%