Fraction of square tiles =

Fraction of rectangle tiles =

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