You are Here: Home >< Maths

# Homework question is driving me crazy!!! watch

1. (Original post by Student403)
Hopefully this

Are you threatening to assault me? That's a crime.
2. (Original post by Student403)
...
I am going to miss him ....
3. (Original post by TeeEm)
I am going to miss him ....
I highly doubt that...
4. (Original post by constellarknight)
I highly doubt that...
Sorry I am busy ...
5. Thank you for your reply. I don't understand your workings though. This is a question for year 6 primary school students. I posted it here because there was no where else.
I don't see how you got 2/7 from 5/7 or what you did there. Yes negative numbers thanks for the correction!
6. (Original post by TeeEm)
Sorry I am busy ...
http://www.thestudentroom.co.uk/show...787&p=63169359
7. (Original post by constellarknight)
READ MY POST. It's simply 2/3 times 2/7.
Where is the 2/7 from?
8. (Original post by Insha9)
Where is the 2/7 from?
The rabbit gets 5/7 (given information), so the guinea pig gets 1 - 5/7 = 2/7.
9. (Original post by constellarknight)
http://www.thestudentroom.co.uk/show...787&p=63169359
had this bookmarked and for the life of me i couldn't figure out where i had gotten it from
10. (Original post by constellarknight)
http://www.thestudentroom.co.uk/show...787&p=63169359
Do another one ...
Hopefully it will keep you away for another week so we can have some peace ...
11. (Original post by Calzs34)
7/21 (1/3) + 10/21 (2/3*5/7) leaves 4/21 left no negative numbers
Did you multiply 2/3 by 5/7? Why?
12. (Original post by Insha9)
Did you multiply 2/3 by 5/7? Why?
Don't listen to him but to me. My method is far simpler...
13. (Original post by constellarknight)
The rabbit gets 5/7 (given information), so the guinea pig gets 1 - 5/7 = 2/7.
Oh yes. So we need to add 2/7 to 1/3?
14. (Original post by Insha9)
Oh yes. So we need to add 2/7 to 1/3?
No, multiply. The person (can't remember her name) eats 1/3, leaving 2/3. Then the guinea pig gets 2/7 of this 2/3 (which the question calls "the remainder", i.e. the bit left over after she has eaten her 1/3). As you know, of means multiply, so 2/7 * 2/3 = 4/21.
15. (Original post by constellarknight)
No, multiply. The person (can't remember her name) eats 1/3, leaving 2/3. Then the guinea pig gets 2/7 of this 2/3 (which the question calls "the remainder", i.e. the bit left over after she has eaten her 1/3). As you know, of means multiply, so 2/7 * 2/3 = 4/21.
Thank you. You've been a big help. 🙂
16. (Original post by Insha9)
Did you multiply 2/3 by 5/7? Why?
Well we have an apple let's say it's cut into 21 pieces, now we know 1/3 is eaten by the human. This leaves 14 pieces left for the rabbit and guiena as 1/3*21=7, 21-7=14, hopefully you're with me there .

Now we know 14/21 (2/3) is the amount of the apple left or 14 pieces, we also know that the rabbit has eaten 5/7 of the apple and the guiena pig 2/7.

This means the 14 pieces leftover are distributed in a ratio of 5:2 (5/7 to the rabbit and 2/7 to the guiena pig). Now to work out what proportion the guiena pig recieves we do 2/3 * 2/7:

Which should give you an answer of 4/21 (meaning if it were in pieces the guiena pig would eat 4 of the 21 slices). I don't like to post solutions but you sound like a teacher from your above reply.

Just for clarification the "*" is a multiplication sign .

(Original post by Insha9)
Thank you for your reply. I don't understand your workings though. This is a question for year 6 primary school students. I posted it here because there was no where else.
I don't see how you got 2/7 from 5/7 or what you did there. Yes negative numbers thanks for the correction!
I think this question is a little hard for most year 6's to be honest, so would only set it for those who are quite capable!

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 3, 2016
Today on TSR

### He broke up with me because of long distance

Now I'm moving to his city

### University open days

1. Norwich University of the Arts
Thu, 19 Jul '18
2. University of Sunderland
Thu, 19 Jul '18
3. Plymouth College of Art
Thu, 19 Jul '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams