Sarin learns Shapes and Solids in school part 40 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills to deal with Math Modeling, Math Problem Solving and 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 Shape.

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

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

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

Upper primary school mathematics question UPQ326

In the figure below, from by a hexagon overlapped with a circle, the hexagon is 11/12 filled with blue while 2/7 of the smaller circle is filled with green. The green portion is overlapped by the two shapes. What is the ratio of the overlapped portion of the figure to the unoverlaped part of the figure?

UPQ326-1

Solution:

            The hexagon is 1 – 11/12 = 1/12 overlapped with the circle

            The circle is 2/7 overlapped

            1/12 of the fraction of hexagon is equal to 2/7 of the circle

            Draw the math model

UPQ326-2

            Overlapped = 2 units (Green)

            Unoverlapped = 5 + 22 = 27 units (Yellow + Blue)

            The ratio of the overlapped portion of the figure to the unoverlapped part of the figure  = 2 : 27

   More Questions on Fraction. Click here…

More Questions on Shapes. Click here….

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