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Q: How do I remove a variable out of the denominator when you are working with a rational equation?

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yes. When you are working with fractions like this, the smaller the denominator, the larger the fraction.

If you are working on simple interest you have to write the equation I=p. r.t

manipulated variables responding variable controlled variable

9.66666666667 = 966666666667/100000000000 If that is the display of a calculator after working something out, it looks like it was a rounding of 9.666.... with the 6 repeating, in which case: 9.666... = (96.66.... - 9.66...)/9 = 87/9 = 29/3 = 9⅔

When working with decimals you have to remember that it goes (ones).(tenths)(hundredths)(thousandths)(ten-thousandths) and so on. the digit "6" is in the thousandths place and therefor is six thousandths or (6/1000) which can be simplified to (3/500) by dividing the numerator and the denominator by two.

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The answer to the question depends on the set of numbers within which you are working. If you are working in integers, x2 = 2.25 has no solution. However, it does have a solution in rational numbers (x = 1.5). If working with rationals, x2 = 6 has no rational solution but it does have a solution in real numbers. Yet again, x2 = -6 has no solution in the reals, but does have a solution in complex numbers.

It means that the equation has no way of working it out / There is no answer.

Using the LCD means you are working with smaller numbers. Also, the answer may require less simplification at the end.

no u dnt need to have a common denominator.. Just multiply both the denominator and numerator of the fractions u are working on and u will arrive at the answers

If the numerator divides evenly by the denominator, simply do that. When working with algebra you can multiply both sides by the denominator.

Irrational numbers can not be expressed as fractions whereas rational numbers can be expressed as fractions.

You cannot work a simultaneous equation. You require a system of equations. How you solve them depends on their nature: two or more linear equations are relatively easy to solve by eliminating variables - one at a time and then substituting these values in the earlier equations. For systems of equations containing non-linear equations it is simpler to substitute for variable expression for one of the variables at the start and working towards the other variable(s).

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Yes because they must all have the same denominator and this is found by working out their lowest common denominator.

You first find equivalent fractions whose denominators are a common multiple of the different denominators. Teachers like you to use the least common denominator: that is not necessary although it can result in your working with smaller numbers and so make things easier.

Yes if it involves working out or finding an unknown variable.

If the variable timing electronic control is not working the engine will not run, or will perform poorly in either low or high rpm.

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