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why are ratios so confusing?

CML2003  Nov 12, 2014

Best Answer 

 #1
avatar+91458 
+5

Only because you do not know how to do them yet. :)

say Tom and Jane have marbles in the ratio 4:5  and Jane has  30 marbles.

Let's see what info we can get from that.

I think it is much easier to set up a box like this. :)

 

Tom Jane Total
4 5 4+5=9

4*6=24

So

Tom has 24 marbles

30

Now

30 divided by 5 is 6

so

5*6=30

so if I multiply the others in this row by 6 I will have everything

9*6=54

so

altogether there are 54 marbles.

I can check this by adding Tom's and Jane's marbles together 

24+30=54

great it must be correct

 

 

this is the EASY way to do it :)

Melody  Nov 12, 2014
Sort: 

2+0 Answers

 #1
avatar+91458 
+5
Best Answer

Only because you do not know how to do them yet. :)

say Tom and Jane have marbles in the ratio 4:5  and Jane has  30 marbles.

Let's see what info we can get from that.

I think it is much easier to set up a box like this. :)

 

Tom Jane Total
4 5 4+5=9

4*6=24

So

Tom has 24 marbles

30

Now

30 divided by 5 is 6

so

5*6=30

so if I multiply the others in this row by 6 I will have everything

9*6=54

so

altogether there are 54 marbles.

I can check this by adding Tom's and Jane's marbles together 

24+30=54

great it must be correct

 

 

this is the EASY way to do it :)

Melody  Nov 12, 2014
 #2
avatar+91458 
0

Alan or someone else, I have not used the table function before and I quite liked it but I cannot work out how to put in the borders.  

 

Would someone like to play with it and work this out please. ??

Melody  Nov 12, 2014

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