Alvis Oh's answer to Mike chan's Primary 5 Maths Whole Numbers Singapore question.
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Since P and Q make 1/2 of square and R and S make 1/2 of square, ratio of P+Q shld equals to ratio of R+S, in this case P+Q is 3 while R+S is 7, the lowest common multiple is 21.
Date Posted:
3 years ago
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