sstrike's answer to JJ's Primary 6 Maths Ratio Singapore question.
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Alternative
LCM concept
3×7u=7×3u=21u
Each total
7u+3u=10u=120
LCM concept
3×7u=7×3u=21u
Each total
7u+3u=10u=120
Date Posted:
1 year ago
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