What part of this rectangle is shaded yellow?
The correct answer is "0.6".
Given the rectangle below:
We observe that 6 out of 10 parts are colored yellow.
That is, the part shaded yellow in the rectangle is six tenths.
We write six tenths as a decimal.
Six tenths is written as the decimal 0.6.
So, 0.6 part of the rectangle is shaded yellow.