Brainliest if the answer is right. There are only blue balls, red balls and yellow balls in a bag.
The ratio of blue balls to red balls is 2:1.
The ratio of blue balls to yellow balls is 1:3.
Calculate the probability that a ball selected at random is blue.

3

Step-by-step explanation:

so the number is

so you are adding the number 1 and 2 3

4.

step-by-step explanation:

it have the same area.brainliest

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5