A kind of rectangular floor tile is 36 cm long and 24 cm wide. How many floor tiles do you need to make a square with this kind of floor tile? What's the area of a square?

A kind of rectangular floor tile is 36 cm long and 24 cm wide. How many floor tiles do you need to make a square with this kind of floor tile? What's the area of a square?

Their least common multiple is 72 cm, so at least 6 such addresses are needed
3.6×.2.4×6=51.84(dm²)