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Answered 2012-12-07 00:41:53

multiply and divide fractions!-.-

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Why do you invert fractions?

When you divide by fractions, you invert and multiply.


How do you multiply and divide dissimilar fractions?

The dissimilarity of the fractions doesn't matter. To multiply two fractions, multiply the numerators together, then the denominators, then put the new numerator over the new denominator. Simplify if you can. To divide fractions, invert the second fraction and multiply as just described.


What is the difference between cross and across?

When you add or subtract fractions you cross multiply and when you multiply or divide fractions you across multiply.


How do you divide simple fractions?

invert and multiply


Why is you impossible divide fractions?

Me is actually not impossible divide fractions. You just take the reciprocal of the dividend and multiply.


Is the reciprocal used to divide fractions?

In order to divide two fractions, multiply the first times the reciprocal of the second.


What are things you do in 5th grade?

You divide fractions and multiply them


How do you divide fractions by x?

Multiply by 1/x


To divide real numbers as fractions multiply by the of the divisor?

" ... multiply by the RECIPROCAL of the divisor.


How do you multiply and divide similar fraction?

To multiply two fractions, multiply the numerators together, then the denominators, then put the new numerator over the new denominator. Simplify if you can. To divide fractions, invert the second fraction and multiply as just described.


Video of how to divide fractions?

You can search YouTube for "divide fractions", and find several.However, it isn't really that complicated; just remember the following simple rules:To divide one fraction by another fraction, take the reciprocal of the second fraction, then multiply.If you have mixed fractions, convert them both to improper fractions, then proceed as above (multiply by the reciprocal).


How do 4th graders divide and multiply fractions?

The same way anyone else does. To multiply fractions, multiply the top numbers together and then the bottom numbers together. The two totals become the top and bottom number, respectively, of the new fraction. To divide fractions, flip the second fraction upside down and multiply it.


How do you divide fractionns?

To divide fractions, turn the second fraction upside down and multiply across.


How do you multiply and divide mixed numbers?

First convert them into improper fractions. And then to multiply multiply both the numerators and the denominators. To divide just take the reciprocal ofthe denomiator anjd then multiply them.


What is the definitions of scaling and ratios?

Scaling- when you multiply or divide equivalent fractions


When doing fractions why is it easier to multiply and divide fractions than add and substract fractions?

It is easier to multiply or divide fractions than to add or subtract fractions because in multiplication, you just have to multiply the numerator by the numerator and the denominator by the denominator. Same applies with division of fractions, except that you have to reciprocate the fraction you're dividing with (divisor) then proceed to multiplication. Whereas, in addition and subtraction of fractions, you still have to get their Least Common Denominator (LCD).


Why do you need a common denominator when adding and subtracting fractions but not when you multiply or divide fractions?

For subtracting and adding you cannot add or subtract unalike things. For multiplication and division you can multiply by whatever you want. In some maths you even multiply by variables such as "x". Or divide by them.


Do you inverse multiply to divide fractions?

To divide fractions, you multiply by the reciprocal. For example, 3/4 (divided by) 3/4 would be converted to 3/4 (divided by) 4/3, you just flip the second fraction and multiply as you normally would if you were multiplying them.


How do you divide fractions with common denomonators?

switch numbers and multiply you should know that


How do you convert fractions to percent on a calculator?

Divide the denominator into the numerator. Multiply the answer by 100.


How do you convert fractions to percentges?

-- Divide the numerator by the denominator.-- Multiply the quotient by 100 .


How do you divide fractions with algebra?

Flip the bottom fraction and multiply it to the top fraction.


How do you multiply and divide fractions?

To multipy fractions, multiply the numerators and divide them by the product of the denominators. Example (2/3)(5/6)=(2x5)/3x6)=10/18=5/9 To divide fractions, invert the denominator and multiply as above Example (2/3)/(5/6)=(2/3)(6/5)=(2x6)/(3x5)=(12/15)=4/5


How can you use multiplication to divide one fraction by another?

To divide two fractions, multiply the first by the reciprocal of the second.


When do you cross multiply in dividing fractions?

To divide fractions, turn the second one over - that is, swap its numerator and denominator - and multiply. Nothing else is necessary. You cross multiply when you have a proportion, that is when you have two ratios that are equal.


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