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I dont kno. good question
From Kevin: I have the problem in Math class today in school. And this is what I came out with:For just a moment, don't think 2 numbers as fractions, think of them as x and y. X divided by Y
When X divided by Y (or "Y over 1"), you can write it as : X times "1 over Y". Thus you get a statement: "When a number was divided by another number, the answer shall equal to the first number times the reciprocal of the second number."
Same statement goes with fraction. Understand?
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How do you solve this equation x over 9 equals 12?
x/9=12 multiply both sides by 9, giving x=108 ____________________________________________________________________ To solve the problem 'x over nine equals twelve', you must first recognize that any number over another number (which includes variables) is a division problem. Thus, all fractions are division problems. You have to multiply by the reciprocal, and multiplication is the opposite of division, and the reciprocal in this case would be 9/1, or just 9. You must apply this to both sides of the equation, so x/9 times 9 is x, and 12 times 9 is 108. Therefore, x =108.
How do you find the reciprocal of a whole number?
To find the reciprocal of a whole number, you must first write it as a fraction. You do this by writing x/1, if the number is 4, it would be 4/1. Then you would find the reciprocal of that fraction. So using the same example, the reciprocal of 4 is 1/4.
What is a unlike fraction?
You must have 2 fractions or more to have unlike fractions. They are fractions with different denominators such as 7/8 and 1/2. Like fractions would have the same denominator like 7/8 and 4/8.
Multiplying fractions and mixed numbers?
can't do it as is... you must convert the mixed number to an improper fraction to multiply To convert the mixed number to a fraction you multiply the denominator and the number in front and then add that to the numerator then you put that number over the original denominator ex. 2 1/3 = (3 x 2 + 1)/3 =7/3 then you can multiply: 7/3 X 4/5 = 28/15
Do you need a common denominator when adding fractions?
Yes, you must convert both fractions to the same denominator to add them. Now... Do the rest of your homework yourself!
