Ng Bee San's answer to Shushi's Primary 5 Maths Rate & Ratio Singapore question.
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Date Posted:
4 years ago
Hi! Can explain how to derive to after ratio?
Leslie is in common. You need to make Leslie's units (5 and 3) into the same. That's why we multiply first set of ratio by 3 and second set of ratio by 5.
Now, Leslie is 15 units. We can combine all three of them together.
Now, Leslie is 15 units. We can combine all three of them together.
Oic. Thank you!
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