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How do you express the fraction -21 and three fifths as an exact decimal?
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∙ 13y ago
-21.6
Wiki User
∙ 13y ago
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How do you express a fraction as a decimal?
Divide the numerator by the denominator and express it as a decimal number (it may not be an exact number, so you may have to decide the number of decimal places). Examples: For the fraction 1/2, you would divide the numerator (1) by the denominator (2) and the answer turns out to be a decimal, exactly 0.5 For 5/8, the decimal is exactly 0.625 For 1/3, the decimal repeats, so it could be 0.33 or 0.3333 (repeats infinitely)
What is an everyday example where a fraction is impossible to use you have to use a decimal?
There is no such example. If you cannot use an exact fraction then there will not be an exact decimal that you can use instead. And, if you are using an approximate decimal, you could use an approximate fraction instead.
0.083 as a decimal?
That is the decimal form. 2/25ths is the fraction form. Approximately. 83/1,000ths to be exact.
If you have a fraction with a negative sign in front of the fraction how do you make it a decimal?
Exact same if there was no negative sign, the number is the number.
What is pi written as an exact fraction?
Since pi is irrational, there is (by definition) no way to express it as an exact fraction. Even so, many people write it as 22/7, which is a fairly accurate representation. But it is not exact!
Is 61 cm an exact number?
Yes, because it isn't a decimal, nor a fraction.
Can you please give me an example of an irrational number and a rational number?
An irrational number cannot be written as a fraction or to an exact decimal such as the symbol for pi or the square root of two. A rational number can be written in the form of a fraction or a decimal to an exact value.
Why is a fraction of pi better then the decimal of pi?
Since pi is an irrational number it is impossible to represent the exact quantity as a decimal; you can only give and approximate value. However, if you write a fraction that includes the symbol for pi, you are giving an exact quantity.
What is 146 divided by 3?
0.0205
What is the exact fraction form of pi?
It is said to be 22/7. And it is 3.14 in decimal form. * * * * * pi is a transcendental number which is a kind of irrational number. An irrational number cannot be represented as an exact fraction.
What is an exact decimal?
an exact decimal must be with the number 0. in it or it is not exact.
What is 0.33333 this in fraction form?
0.33333 . If this is a terminal decimal then as a fraction it is 33333/100000 However, if it is a repeating decimal to infinity, then it should be written as 0.33333... ( Notice the dots after the last number; this indicates it is a repeating to infinity decimal.) To converto a fraction. Let P = 0.33333.... Then 10P = 3.33333... Subtract 9P = 3. 0 = 3 ( Notice the repeating decimal digits subtract to zero). Hence 9P = 3 P = 3/9 Cancel down by '3' P = 1/3 ( The answer). 0 0
