Hwee Koon
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Fractions

There are 390 spectators at a match. 5/7 of female spectators is equal to 2/5 of male spectators. How many more male spectators than female spectators are there?

Replies 5
Hwee Koon

Why do we make the numerator the same? As in 10/14 of female = 10/25 of male. 39 units -- 390 I unit -- 10 11 units -- 10 x 11 = 110

6 years ago
Hwee Koon

Instead of 25/35 of female = 14/35 of male It's also 39 units in numerator?

6 years ago
Wenxiang Huang

This question is so easy to do, if algebra is used. Yet another classic example that sometimes, logical sequencing makes more sense

6 years ago
Hariani Salleh

6 years ago
Lim Xin Rong

@hwee koon, Denominator represents the total of each of female and male. Total female is not the same as total male. Instead, it is the specific portion of female that is the same as that of male. By the model above, it also shows the specific portion that is equal, which is actually the numerator. Thus we make numerator the same. Hope this explains.

6 years ago

Linda Lau
Asked 9 years ago

SG chevron_right Primary 3 chevron_right Number and Algebra

P3 maths..need help. .thanks advance! !

Replies 3
Huixian Lu

After Rachel gives 10 coins to Rina, they each have 28 coins (56 coins divided by 2). Hence, before giving the coins to Rina, Rachel had 28+10=38 coins. Value of 38 50cent coins is $19.

6 years ago
Hariani Salleh

6 years ago
Linda Lau

Thanks all !! Appreciated! !

6 years ago

Carol Sia
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Is the answer for this 5.8m?

Replies 4
Hariani Salleh

6 years ago
Carol Sia

I see. Thanks a ton!

6 years ago
Hariani Salleh

Not at all

6 years ago
Shaoyang Brandon

You can go by another approach. If you add 3m to String C, you will realise that A and C are equal in length. Soooo, this means that you will have 2 units of length for A and 2 units of length for C AND 1 unit of length for B. Total units ---> 5 Total length (because 3m was added to string C) ---> 22m+3m = 25m Find the value of 1 unit and you can find the length of C.

6 years ago
Hariani Salleh

Not at all

6 years ago

Sya'irah Jasmin
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Need help tx

Replies 1
Hariani Salleh

6 years ago

Sherry Liew
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Fractions

Hi pls help me on this math question. Thanks in advance

Replies 8
Caleb Tey

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Hariani Salleh

For this question, it involves ratio or using units and parts. The question is a P6 syllabus question, when a quantity is expressed as a fraction of another quantity. Something for us to take note. Cheers!

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Hariani Salleh

Not at all, Sherry Liew

6 years ago
Kai Meng

Hi, here's another way to draw it out.

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Kai Meng

Sherry Liew Welcome! :D

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Hariani Salleh

Not at all, Sherry Liew

6 years ago
Sherry Liew

Thank you.😊

6 years ago
Kai Meng

Sherry Liew Welcome! :D

6 years ago

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