A rectangular floor tile is 24 cm long and 18 cm wide. How many floor tiles do you need to make a square with this kind of floor tile

It should be to find the least common multiple of 24 and 18, 12 blocks, 18x = 24y, and the lowest front edge of X * y value is an equation parabola or something

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1. The floor of a room is rectangular. If all the floors are paved with square tiles, what is the maximum side length of the square tiles? (1) How many tiles are needed to cover the floor of this room? (2) Note: (1), (2) divided into title number, pay attention to the unit, to the process! 4.8m long 4.2m wide
2. Use side length (whole decimeter)______ Decimeter______ Decimeter______ Decimeter square can be just covered with 16 decimeter long, 12 decimeter wide rectangle
3. Use a rectangular tile that is 8 decimeters long and 6 decimeters wide to pave the floor. To pave a square, how many decimeters is the side length of the square at least? How many tiles were used?
4. Use side length (whole decimeter)______ Decimeter______ Decimeter______ Decimeter square can be just covered with 16 decimeter long, 12 decimeter wide rectangle
5. How many floor tiles do you need to make a square with a rectangular floor tile 45 cm long and 30 cm wide?
6. There is a rectangular floor tile, each 45 cm long, 30 cm wide, at least how many such floor tiles can be paved into a square?
7. A kind of rectangular floor tile, 45 cm long and 30 cm wide. How many floor tiles do you need at least to make a square
8. There is a 48 cm long, 28 cm wide rectangular floor tile, if you use it to lay a square floor, then at least a few pieces The teacher said it wasn't 84
9. There is a rectangular floor tile 48 cm long and 28 cm wide. If you cut it into a square with the same side length and area, there is no surplus. How many pieces can you cut at least? If you use it to pave a square floor, how many such tiles are needed at least
10. 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?
11. A kind of rectangular floor tile is 30 cm long and 15 cm wide. At least how many such tiles can be paved into a solid square?
12. The first question: a kind of rectangular floor tile is 24 cm long and 18 cm wide. How fast does it take to make a square floor with this kind of floor tile? The second question: a class of students do exercises, 10 people in a row, 8 people in a row are just finished, this class at least how many students? (please write quickly, I want to do the problem) How about a common multiple?
13. The floor of a shopping mall hall is a rectangle with a length of 16m and a width of 24m. If you want to use square tiles with a side length of 80cm to cover the floor of the whole hall, At least how many such tiles are needed?
14. Can a rectangular tile with a length of 3 decimeters and a width of 2 decimeters not be a square? If so, how many decimeters is the minimum side length of the square? At least how many such tiles are needed?
15. In a living room with a length of 5 meters and a width of 4 meters, the floor tiles are counted as a whole. The side length of the floor tiles is () decimeters, and the largest is () decimeters. This is a mathematical problem
16. Xiao Hong's family is laying floor tiles in the living room. The living room is 8 meters long and 4 meters wide. One is 40 cm long and 8 yuan. The other is 30 cm long and 6 yuan. How much does it cost to use 30 cm
17. There is a kind of rectangular floor tile, its specification is 40cm * 30cm. At least how many such tiles can be used to make a square floor? It's better to write the process so that I can understand it. Thank you! It's a math problem. Don't post randomly!
18. The floor of Li Hua's bedroom is 6m long and 3M wide. He chose the following two kinds of floor tiles: 30cm * 30cm, each 6.5 yuan, 40cm * 40cm, each 9 yuan (1) How many square tiles are needed to cover the whole floor with 30cm square tiles? (2) How many square tiles are needed to cover the whole floor with 40cm square tiles? (3) What kind of floor tile is cost-effective for this bedroom?
19. A 5 m long and 3 m wide rectangular bedroom is paved with floor tiles. The side length of the floor tiles is 50 cm. How many such tiles do you need to cover the whole bedroom?
20. Lili's bedroom is a 6-meter-long, 4-meter-wide rectangle with 30cm * 30cm floor tiles. How many pieces do you need at least