# A fractions question i need solved.

• Jan 3rd 2013, 09:20 AM
andypandy
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.
• Jan 3rd 2013, 09:26 AM
emakarov
Re: A fractions question i need solved.
Your post is hard to read. Since the forum does not preserve alignment, write $a / b$ instead of $\frac{a}{b}$. Make sure to use parentheses where necessary.
• Jan 3rd 2013, 10:31 AM
andypandy
Re: A fractions question i need solved.
Thanks will do.
• Jan 3rd 2013, 12:38 PM
skeeter
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
$\frac{45}{28} = \frac{28+17}{28} = \frac{28}{28} + \frac{17}{28} = 1 + \frac{17}{28}$
• Jan 6th 2013, 11:08 PM
andypandy
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
• Jan 6th 2013, 11:10 PM
andypandy
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.
• Jan 7th 2013, 12:07 AM
grillage
Re: A fractions question i need solved.
You cannot go further with it since 17 is a prime number and cannot be divided.