Sarin’s family and Ramadan Part 10 (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 of dealing with Math Question Solving, Math Modeling and Problem Sums from Lower Primary School to Upper Primary School level after reading the postings. This posting is a lower primary school math question on Fraction.

You can read the postings on Sarin’s family and Ramadan and Sarin’s family celebrating Hari Raya Puasa in Welcome page about story of Sarin’s family during Ramadan and Hari Raya Puasa.

Read also the posting on Sarin learns the Concept of Fraction (Mathematics Concept) on concept of Fraction

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

Lower primary school mathematics question LPQ60

Fatimah’s mother bought a piece of cloth to make curtains and cushion covers during Ramadan. She used 1/2 of the piece of cloth to make curtains while 3/10 of it was used to make cushion covers. What fraction of the cloth was not used?

Solution:

Draw the fraction model

From the above model

The fraction of cloth left over = 2/10 = 1/5

Alternative solution:

The fraction of cloth used to make curtains = ½ = 5/10

The fraction of cloth used to make cushions = 3/10

The fraction of the cloth not used = 1 – 5/10 – 3/10 = 2/10 = 1/5