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Fraction of square tiles = 
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Fraction of rectangle tiles = 
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Step-by-step explanation:
Total number of tiles to be used in the kitchen = 100
The total number of square tiles = 34
The total number of rectangle tiles = 16
Now, calculating the total fraction of square tiles:
The fraction of square tiles = 
Also, solving the fraction, we get 
So, the decimal value of square tiles = 0.6
Calculating the total fraction of rectangle tiles:
The fraction of rectangle tiles = 
Also, solving the fraction, we get 
So, the decimal value of rectangle tiles = 0.34