Answer: D
Explanation: If you count the colored scattered blocks, there are 20 out of 100 blocks colored. The image on the left is 20/100.
The imagine on the right has two out of the ten lines colored in so it is 2/10
Get them to the same denominator (Bottom part of fraction)
20/100 ÷ 10 = 2/10
Now add the two values
2/10 + 2/10 = 4/10
Lastly, turn it into a number.
(To do this you divid the nominator (top part) by the denominator (bottom part))
4 ÷ 10 = 0.4 = 0.40
