Q: Which numbers one through ten could be a denominator but it is a repeating decimal?

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No, it is not. Let us take the denominator (6) and see if it is a factor of 2 or 5. Well, its not :( Basically, if the denominator is 2 or 5, (or is a factor of 2 or 5 when squared or cubed) it is a terminating decimal. 2 and 5 are the only numbers that are factors of ten, and you know that 10 is the easiest denominator to reduce fractions through. Hope this helps!

There are 9*9*8*7 = 4536 of them.

A number which can not be expressed as a ratio of two integers is "irrational". Irrational numbers can not be expressed on paper through conventional means. Examples of irrational numbers are: pi Euler's number (e) Any square root of an integer which isn't a perfect square.

They GCF and LCM are useful in working with fractions: In simplifying a fraction dividing the numerator (top) and denominator (bottom) by the same number reduces the fraction. By dividing through by the GCF of the numerator and denominator the fraction cannot be simplified any further (except converting improper (top heavy) fractions to mixed numbers). For large numbers, it may not be obvious what are the common factors of the numerator and denominator so using a general algorithm to find their GCF makes this easier. When adding or subtracting fractions a common denominator is needed. One number which is guaranteed to work is to multiply all the denominators together. However, this can lead to extremely large numbers which can be difficult with which to work and lead to a fraction that will require simplifying. By using the LCM as the new denominator (hence its alternative name of LCD - Lowest Common Denominator) it ensures the numbers shouldn't get too big and should be easier with which to work.

You can find a missing denominator if you know something that the fraction is equal to. Then you can find the missing denominator through cross multiplication.

Related questions

anything between 3.5 to 4.4999999 repeating

Read the whole thing through first to make any sense. I hope it helps you. If the decimal is non-repeating: divide the number over 100. Ex. 0.5= 50/100= 1/2= 0.5, .25= 25/100= 1/4= 0.25, .375= 375/1000= 3/8= 0.375 always have at least two numbers over 100, 0.5= 50/100, and have the same number of digits as the decimal, .375=375, but it has to be over 1000 because there has to be one more digit on the bottom number (denominator) than the top number (numerator). If the decimal is repeating: divide the number over 99. Ex. 0.3 repeating= 33/99= 1/3= 0.3 repeating, 0.45 repeating= 45/99= 5/11= 0.45 repeating, 0.142857 repeating= 142857/999999= 1/7= 0.142857 repeating. always have at least two numbers over 99, 0.3= 33/99, and have the same number of digits as the decimal, 142857/999999, but it has to be over 999999 (6 9's) because there has to be the same number of digits on the bottom number (denominator) and on the top number (numerator). The two options I have explained only work to a certain extent. A regular calculator will not convert a decimal to a fraction. You will have to work it out by hand from the two ways I have explained. If you have a TI-34 II and maybe only some other certain calculators, type the decimal in and type the fraction button, and it will tell you the fraction in lowest terms.

No, it is not. Let us take the denominator (6) and see if it is a factor of 2 or 5. Well, its not :( Basically, if the denominator is 2 or 5, (or is a factor of 2 or 5 when squared or cubed) it is a terminating decimal. 2 and 5 are the only numbers that are factors of ten, and you know that 10 is the easiest denominator to reduce fractions through. Hope this helps!

you can convert it to a decimal.

93,876

There are 9*9*8*7 = 4536 of them.

A number which can not be expressed as a ratio of two integers is "irrational". Irrational numbers can not be expressed on paper through conventional means. Examples of irrational numbers are: pi Euler's number (e) Any square root of an integer which isn't a perfect square.

To add, or subtract, numbers with the same denominator, just add or subtract the numerators, and put the result on top of the common denominator. Example: 3/10 + 1/10 = 4/10.To add or subtract numbers with different denominators, you first find a common denominator, and convert the fractions (by multiplying numerator and denominator of a fraction by the same number). Example: 1/2 + 2/5 - common denominator is 10. 1/2 + 2/5 = 5/10 + 4/5. Now you can add.Often you are asked to find the least common denominator; however, this can be somewhat tricky. If the larger number is divisible through the smaller, you already have solved this part. If it is not, you might want to simply multiply the two denominators. This will give you a common denominator, but not necessarily the least common denominator. In general, for any numbers a, b, c, and d: a/b + c/d = (ad + bc) / bc. Repeating the previous example: 1/2 + 2/5 = (1x5 + 2x2) / (2x5) = 9/10.

12354.

The answer to an addition question should have no more decimal places than the smallest number of decimal places in the numbers being added. When rounding numbers, numbers 5 though 9 will be rounded up and 1 through 4 will be rounded down.

There are 15C3 = 15*14*13/(3*2*1) = 455 combinations, and I am NOT even going to try listing them.

A spinner has the numbers 1 thru 9. What is the probability of P(less than 6)? Write the answer as a decimal.