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andrew-mc [135]
3 years ago
12

Some rectangular tiles measure 15 cm by 9 cm . What is the length of the side of the smallest square area that can be covered by

these tiles? PLS HELP
Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

45 cm

Step-by-step explanation:

Find LCM(15,9). First factor both numbers:

15=3\cdot 5\\ \\9=3\cdot 3

So,

LCM(15,9)=3\cdot 5\cdot 3=45

This means that the length of the side of the smallest square area that can be covered by these tiles is 45 cm.

Practically, you can put 3 tiles in a row (to make 3 lenghts of 15 cm each that add up to 45 cm) and put such 5 rows (to make 5 lengths of 9 cm that add up to 45 cm).

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