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Scaffolded problems: Show 3/5 ÷ 2/7. Step 1: 'Keep: ___' (3/5). Step 2: 'Change: ÷ becomes ___' (×). Step 3: 'Flip: 2/7 becomes ___' (7/2). Step 4: 'Multiply: 3/5 × 7/2 = ___' (21/10). Step 5: 'Simplify/Convert: ___' (2 1/10). 10 problems with decreasing scaffolding (last 3 just show the problem and

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