sstrike's answer to Wolfie's Primary 6 Maths Ratio Singapore question.
Hi,
How to determine when do we have to use a common factor to solve 3:1:5:9 => 9 : 3 : 15 : 27?
How to determine when do we have to use a common factor to solve 3:1:5:9 => 9 : 3 : 15 : 27?
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