Adealer dealt the following cards from a shuffled deck: 3 , 2 , 2 , a , k , q , k , 5 , 2 , 6 4 , 5 , k , 2 , 7 , 6 , a , j , j , a what was the experimental probability of dealing a black card? can someone 8 cards are black and 12 are red

In this question, the dealer takes 20 card which was 8 black cards and 12 red cards. The question asking the probability of dealing a black card. You can ignore the card number since the probability only asking for the colour. The chance would be
black card dealt / total card dealt
black card dealt / (black card dealt  + red card dealt ) 
8/ (8+12)= 8/20= 2/5