Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Math Essentials, Fraction Manipulation Drill #3
PostPosted: Sun Nov 08, 2009 8:54 pm 
Offline

Joined: Sat Oct 24, 2009 1:01 pm
Posts: 2
#3: What number, when divided by 13/19, equals 133/65?
The answer is 7/5.

Can someone help explain steps to answer this problem? Thank you


Top
 Profile  
 
 Post subject: Re: Math Essentials, Fraction Manipulation Drill #3
PostPosted: Mon Nov 09, 2009 7:00 am 
Offline

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
Think of it this way:

There is a number x, that, when we divide by 13/19 equals 133 / 65
Putting this into an equation gives us

x / 13/19 = 133/65
(division sign doesn't come through - so i have / instead.)

Multiply both sides by 13/19 and the fraction on the left will go away

x = 133/65 * 13/19
133 is 19 * 7 so the 19 will cancel and leave you with
(7/65) * 13
65 is 13 * 5, so the 13's cancel
leaving us with
7/5

Veritas Help


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
cron