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 can learn the skills to deal with the Math Modeling, the Math Problem Solving and the Problem Sum 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 Shapes.

Read the posting on **Sarin learns Shapes and Solids in school (Math Concept)** to know about shapes.

Read also the posting on **Sarin learns the concept of Fraction (mathematics concept)** to understand Portion and Fraction.

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

**Upper primary school mathematics question UPQ521**

Below figure is formed by two equilateral triangles and a circle. The cirlcle touches the blue triange and the points of the yellow triangle touch the circle. What is the fraction of the yellow triangle to the figure?

Solution:

The points of the yellow equilateral triangle the circle

By rotating the yellow equilateral in the circle as above diagram shown

The blue equilateral triangle can be cut into 4 equal in area equilateral triangles

The fraction of the yellow triangle to the figure = 1/4

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