There are a number of floor tiles, each 45 cm long and 30 cm wide. At least how many such tiles can be used to make a square

There are a number of floor tiles, each 45 cm long and 30 cm wide. At least how many such tiles can be used to make a square

The least common multiple of 45 and 30 is 90 cm
90/45=2 90/30=3
2 * 3 = 6
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