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Q: When and why do you need decimals?

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This already is decimals. No need to convert anything.This already is decimals. No need to convert anything.This already is decimals. No need to convert anything.This already is decimals. No need to convert anything.

They need to know about decimals, fractions, and percents because they need to know the exact measures of the things they are designing.

I need help in how to convert fractions to decimals

Accountants use decimals by simply dividing the fractions and getting a decimal number. One does not need to be an accountant to use decimals.

You need to line up decimals for additional and subtraction. For multiplication, you don't need to line them up - in fact, it would serve no useful purpose.

Yes.

They can be but need not be.

Convert the repeating decimals into fractions, and then add those. If you need it as a decimal, then you can just convert the product back into a decimal!:)

You determine the least to greatest in decimals by using their leftmost unit. The decimal 0.2 is less than 0.3. To determine fractions, you need to first convert them to decimals.

You can use decimal models to add decimals by using the hundedths blocks as used in base-ten blocks and add the following decimals you need to and use the hundredths block to shade in the total.

2.778 IS in decimal form. You do not need to do anything.

All jobs will use terminating decimals but most jobs will also require you to be able to work with recurring decimals and many will need decimal numbers which are neither terminating nor recurring.

3 litres is a perfectly good answer in decimals. There is no need to add a decimal point simply for the sake of adding one.

It is 26888000 and there is no need to put a decimal point at the end.

Whenever the numbers that I need to work with are not integers.

Nothing. I know all that I need to know.

because they don't know how to use decimals

to be honest i need the same answer and i don't get how to do anything with decimals!

Its for good puposes

String is not appropriate for that. While it is possible to store a number in a string, additional conversions need to be done if you need the number for calculations. Instead, use an integer data type (if no decimals are required), or a real data type (if decimals are required). In Java, for example, you could use int (no decimals) or double (allows decimals).

Decimals are all ready decimals so how could you say to convert it back to decimal

It is a rational number because if need be it can be expressed as a fraction.

0.03 = 3%If you want to convert from decimals to percentages, then you just need to multiply the whole decimal by 100%. If you want to convert from percentages to decimals, you just divide by 100%.I'm assuming you mean .003, which in that case, 3%.

6.5 or 6.50 depending on how many decimals you need to show.

That already is a decimal. No need to convert anything.