Q&A - P4 Math

[BigDevil]

1 plate ---- 5 units

1 bowl ----- 3 units

5 Bowls cost as much as 3 plates

3 plates ---- 15 units
5 bowls ----- 15 units


:thankyou: tianzhu!
Was wondering how to solve this without using algebra.

[smartmummy]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

make it equal.In the qn they said 3plates=5bowls ---- 3*5=5*3 so plates=5units ,bowl=3units.

[MathIzzzFun]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

One way is to use the equal fraction/numerator method:

http://i48.tinypic.com/vfhull.png\">

cheers.

[tianzhu]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8086/8551140688_ab09f44b7a_z.jpg\">

[fohope]

Hi,

Please help me with this question. Thanks in advance.
How many sixths are there in 2 2/3?

[BigDevil]

2 2/3 = 8/3 = 16/6


16 sixths.

[BigDevil]

Teacher: Give me a fraction between 1/2 and 3/4.


Sam: 2/3, because 2 is between 1 and 3, and 3 is between 2 and 4.

Question: is this reasoning always correct?
If not, give examples where it does not work.

[PapayaDad]

between 1/2 and 5/6


answer 2/5 wrong

[fohope]

fohope:

Hi,

Please help me with this question. Thanks in advance.
How many sixths are there in 2 2/3?

Hi BigDevil,
Thank you for your answer.
I do not understand the question? Could you explain what they means by
sixths in the question?

[BigDevil]

PapayaDad:

between 1/2 and 5/6


answer 2/5 wrong

Thanks, PapayaDad.

So we can pick any 2 fractions?
What if the fractions must be x/y and (x+2)/(y+2) like in the question?
Then is it always true that x/y < (x+1)/(y+1) < (x+2)/(y+2) :?