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[Closed] Help! Kid's maths homework!

 DezB
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Fractions, and my brain is too old to remember this stuff.

1. What fraction is exactly halfway between 3/5 and 5/7 ?

2. 12500 visitors is an increase of a quarter over last year. How many visitors last year?


 
Posted : 03/12/2013 7:35 pm
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23/35


 
Posted : 03/12/2013 7:36 pm
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10k


 
Posted : 03/12/2013 7:37 pm
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Q2 Divide by 5 and multiply by 4


 
Posted : 03/12/2013 7:38 pm
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1 3/5 = 21/35 and 5/7 = 25/35 so exact halfway would be 23/35

2 10000


 
Posted : 03/12/2013 7:39 pm
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Wrightyson - 6/10 you need to show your workings 😉


 
Posted : 03/12/2013 7:40 pm
 DezB
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Thanks! A-ha! common denominators?


 
Posted : 03/12/2013 7:40 pm
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Very topical to today's news 😐
[url] http://www.bbc.co.uk/news/education-25187997 [/url]


 
Posted : 03/12/2013 7:42 pm
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change both fractions to 35ths (21/35 and 25/35)

If last year was 100%, or 4 quarters; this year was 125% or 5 quarters

to find out what 4 quarters was, take this year, divide by 5 to get one quarter, then x4 (or x4/5)

(or divide by 125 and x 100)


 
Posted : 03/12/2013 7:49 pm
 DezB
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Very topical to today's news

Oh bugger off, he's only 11 and did all the other stuff, including a story about rocket leaves 😉


 
Posted : 03/12/2013 7:52 pm
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I was first up and in just a thick builder! Harsh marking wwaswas 😥


 
Posted : 03/12/2013 8:47 pm
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* I'm *


 
Posted : 03/12/2013 8:48 pm
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I was first up and in just a thick builder! Harsh marking wwaswas

I'd go round and show him the working out you did on that lump of 4 by 2 in the back of your van. 🙂


 
Posted : 03/12/2013 8:50 pm
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If this hasn't already been done to death:
1) You're effectively finding the average, add the two togeather and divide by 2.
2) If he's done any algebra: 1.25x = 12500 so x = 12500÷1.25 =10000
Hope that helps!


 
Posted : 03/12/2013 8:51 pm
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I was first up and in just a thick builder!

Far from it; in all seriousness you probably use maths far more than most people!


 
Posted : 03/12/2013 8:54 pm
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[i]I was first up and I'm just a thick builder![/i]

You're clearly not *that* thick 🙂

Those were the sort of real world maths questions that my wife who has an MSc in Teaching Maths struggles to get right (really).

I really meant that the OPP needed to know the technique for working out common denominators etc as well as the actual answer to the question.

We'll go for 10/10 for the answers and 6/10 for the other bit then 🙂


 
Posted : 03/12/2013 8:55 pm
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Likes fractions, kids and chocolate cupcakes. 🙂


 
Posted : 03/12/2013 9:00 pm