Just joined this forum and I'm hoping to get some help. I am home educating three boys and maths is definitely not my forte. In fact, I was terrible at maths at school (always wanted to know why things were done in a certain way rather than just do it because that was the formula. Consequently I got completely left behind still trying to work out 'why' (plus spending most of my childhood in hospital and going to 13 different schools didn't help). So, now I am learning maths with my boys and actually loving it. I don't have anyone to help me with problems that we have difficulty with so I hope people here might help. Anyway enough of the 'sob story'. Here are a few problems we have been struggling with.
(3/8y + 5/6x) / 5/12xy
I'm not sure how to write maths so perhaps this makes more sense:
(3/8y + 5/6x) divided by 5/12xy
The answer in the book is: 9x + 20y divided by 10.
If someone could show me the workings for how this answer is obtained that would be great.
Another problem we have is:
(27x^2)^(1/3) divided by 1/3(x^3)^1/2. In other words 27 'x' squared all raised to the power of a third. That is then divided by a third times (x cubed) raised to the power of a half. The answer in the book is given as 9/x^5/6 (ie, 9 divided by (x to the power of 5 sixths). I am completely lost with this one and if someone can show me how to do it I might have a chance of doing the other similar ones in the book.
Thanks
Anne
(3/8y + 5/6x) / 5/12xy
I'm not sure how to write maths so perhaps this makes more sense:
(3/8y + 5/6x) divided by 5/12xy
The answer in the book is: 9x + 20y divided by 10.
If someone could show me the workings for how this answer is obtained that would be great.
Another problem we have is:
(27x^2)^(1/3) divided by 1/3(x^3)^1/2. In other words 27 'x' squared all raised to the power of a third. That is then divided by a third times (x cubed) raised to the power of a half. The answer in the book is given as 9/x^5/6 (ie, 9 divided by (x to the power of 5 sixths). I am completely lost with this one and if someone can show me how to do it I might have a chance of doing the other similar ones in the book.
Thanks
Anne