Question posted by Logamathi from Singapore:
The ratio of A:B is 5:3. The ratio of B:C is 3:4 . What's the ratio of A:C ?
Step 1: Draw 5 equal boxes to represent A and 3 equal boxes to represent B.
Step 2: Draw 4 equal boxes to represent C.
From the model, we can see that the ratio of A:C is 5:4.