Question
Fabian wanted to cut small identical 3 cm by 2 cm rectangles from a rectangular cardboard measuring 20 cm by 15 cm. What is the maximum number of complete small rectangles Fabian could cut? (Note: Fabian could rotate the small rectangle.)
3 m

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Fabian wanted to cut small identical 3 cm by 2 cm rectangles from a rectangular cardboard measuring 20 cm by 15 cm. What is the maximum number of complete small rectangles Fabian could cut? (Note: Fabian could rotate the small rectangle.)