How to add 5/8+2/5 in simplest form

1 1/40

Step-by-step explanation:

5/8 + 2/5

The common denominator is 40

5/8 * 5/5 = 25/40

2/5 *8/8 = 16/40

5/8 + 2/5

25/40 +16/40

41/40

40/40 + 1/ 40

1+ 1/40

1 1/40

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation:

add an image

step-by-step explanation: