40234

For number 1 we put 1/8 because it is a quarter of half of the rectangle 1/4 * 1/2 = 1/8.
We thought that number 2 was 1/16 because you can see that it is half of number 1 1/2 * 1/8 = 1/16
For number 3 we thought 3/16 because if you take 1/16 from a 1/4 you get 3/16
Number 4 is 1/16 because if you split the rectangle into 1/8 you can see that it is half of the 1/8 which is 1/16 1/2 *1/8 = 1/16
We thought that number 5 is 1/8 because it is half of a 1/4 of the rectangle 1/2 * 1/4 = 1/8
For number 6 we thought it was 1/16 because because if you split the rectangle into 1/8 number 6 is half of one of the 1/8. 1/2 * 1/8 = 1/16
Number 7 is 3/16 because 1/32 + 1/16 = 3/16
We thought that number 8 was 1/32 because if you split the rectangle into 1/8 you can see that number 8 is a 1/4 of the 1/8. 1/2 * 1/16 = 1/32
For number 9 we thought that it was 1/32 because you can see that it is a 1/4 of number 5. 1/2 * 1/16 = 1/32
Number 10 is 1/64 because 1/2 * 1/32 = 1/64