The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids will learn the skills of dealing with the Math Problem Solving, the Math Modeling and the Problem Sums from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Fraction and Problem Sum.

You can read the posting on **Sarin learns the concept of Fraction (mathematics concept)** to understand the concept of Fraction or Portion.

*Challenge yourself with the question before look out for the given solution‼!*

**Upper primary school mathematics question UPQ390**

Hairu had 3/5 as many stickers as Fatimah. For every* *10 stickers Fatimah had, Sarin had 4 stickers. If Hairu had 246 stickers, find the number of stickers that Sarin had.

Solution:

Hairu’s stickers is 3/5 of Fatimah’s stickers

For every 10 stickers Fatimah had, Sarin had 4 stickers

It means every 5 stickers that Fatimah had, Sarin had 2 stickers

Or, Sarin’s stickers is 2/5 of Fatimah’s stickers

Draw the model,

From the model

3 units = 246

1 unit = 82 stickers

The number of stickers that Sarin had = 2 × 82 = 164

You can also work out by first determine the number of stickers that Fatimah have then based on the given info. of every 10 stickers that Fatimah had, Sarin had 4 stickers to determine the number of stickers that Sarin had.

Hairu’s stickers, 3 units ==> 246

Fatimah’s stickers, 5 units ==> 5 × 246 ÷ 3 = 410

Sarin’s stickers = 4 × 410 ÷ 10 = 164

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