Simplify each answer and explain each answer M.4/5+4/5
N. 8 1/3 + 8 1/3 + 8 1/3
O.5/8 + 3/8
P. 7 4/8 + 8 7/8

Pls help

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

Pls! does anybody know a shortcut for answering these types of questions in the future?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.