Question

help?
1/x - 1/6x^3 + 1/120x^5?

Answer 1

first find the Lowest Common Multiple of
x , 6x^3 and 120 x^5

Answer 2

is it 1?

Answer 3

a simple example of finding the LCM is

LCM of 2x , 4x^2 ?


the LCM is 4x^2
because 2x divides into it exactly and so of course does 4x^2

very often the LCM is the highest term

Answer 4

- i should have said the lowest term into which each will divide

Answer 5

sorry

Answer 6

?

Answer 7

what is the lowest term that x and 6x^3 and 120x^5 will all divide into?

Answer 8

do you see that its 120x^5 ?

Answer 9

yes,

Answer 10

good
now we must go about converting 1/x and 1/6x^3 to fractions which have 120x^5 as the denominator
We can only add fractions with the same denominator
eg we cant add 1/2 and 1/4 but we can add 1/4 and 3/4)

Answer 11

so we need to convert 1/x to something / 120x^5
we do this multiply top and bottom by 120x^4