It is 29.447498, exactly as in the question. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. The fact that you are asking this question suggests that you have not yet learned about non-decimal representations such as hexadecimal.
terminating decimals and repeating decimals
terminating decimals non terminating decimals repeating decimals non repeating decimals
Two of them are terminating decimals and recurring decimals
Terminating decimals are decimals that end, such as, 2.384. Non-terminating decimals that don't end, such as, 0.3333333333.......
6.7,6.8,6.4,5.9
The answer depends on what you wish to do with decimals.
You need decimals when you measure and fractions. You need decimals, because to measure and fractions. Also, so whole numbers could exist if there are decimals. There will be no math if there's no decimals.
3rd. Adding Decimals 5th - Adding and subtracting 6th - Dividing Decimals
terminating decimals repeating decimals
Some decimals are. Counting numbers are a proper subset of decimals.
Some decimals repeat. Some decimals go on forever. Some decimals stop. Those are called terminating decimals.
Yes providing you change the fractions into decimals or change the decimals into fractions