A fractions question i need solved.

Hi, I am 49 and trying to learn fractions. I have tought myself long devision in a couple of weeks. I already know multiplication and subtraction as I want to get on the railway as conductor in the UK, and their is a basic maths test. I can't do fractions I'm useless at fractions. I'm trying to teach myself. I understand this fraction untill it gets to the final answer. I'll write it out the way I understand it.

6/7+6/8 =. 6X8+7X6/7X8 =. 48+42/56 =. 90/56 = 45X2/28X2 =. 45/2

I understand what I have put, but how do they come

up with the answer = 1 17/28 which is mixed numbers.

Can anyone please expain it and how to do it. Can you show it written down like I've done on the above sum.

Thanks. Andy.

Re: A fractions question i need solved.

Your post is hard to read. Since the forum does not preserve alignment, write $\displaystyle a / b$ instead of $\displaystyle \frac{a}{b}$. Make sure to use parentheses where necessary.

Re: A fractions question i need solved.

Re: A fractions question i need solved.

Quote:

6/7+6/8 =. 6X8+7X6/7X8 =. 48+42/56 =. 90/56 = 45X2/28X2 =. 45/28 ... correction

$\displaystyle \frac{45}{28} = \frac{28+17}{28} = \frac{28}{28} + \frac{17}{28} = 1 + \frac{17}{28}$

Re: A fractions question i need solved.

Hi on a fractions calculator app it shows the answer to the above as = 1 17/28. ~ 1.607142857142857

Re: A fractions question i need solved.

Is it possible to leave the answer as 17/28 in a test or would I have to go further with it.

Re: A fractions question i need solved.

You cannot go further with it since 17 is a prime number and cannot be divided.