Q&A - P4 Math

[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

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[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) :?

[BigDevil]

fohope:

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

From thefreedictionary.com....

n.
1. (Mathematics)
a. one of six equal or nearly equal parts of an object, quantity, measurement, etc.
b. (as modifier) a sixth part
2. (Mathematics) the fraction equal to one divided by six (1/6)

So the question is asking how many 1/6's there are in the given fraction.

[fohope]

Hi BigDevil,

Thank you for your clear explanation.

[fohope]

Hi,

Pls help me on this question. Thanks in advance.

A number is 6000 when rounded off to the nearest 10.
What is the largest possible number?