9 ways to pick the rank from {2,3,4,5,6,7,8,9,10}
4 ways to pick the suit from {♥,♦,♣,♠}

That's (9)(4) = 36 ways to pick the card successfully out of 52 ways
to pick the card.

That's a probability of 36 ways out of 52 or 36/52 which reduces to 9/13.

Edwin