What is the probability of pulling a red card or an ace?

What is the probability of pulling a red card or an ace from a deck of cards?

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Find the probability of drawing any red card
plus the probability of drawing any ace
minus the probability of drawing a red ace

In a standard deck of 52 cards:
P(any red card) = 26/52 {there are 52 total cards and 26 are red}
P(any ace) = 4/52 {there are 52 total cards and 4 are aces}
P(red ace) = 2/52 {there are 52 total cards and 2 are red aces}

P(red card or an ace)
= 26/52 + 4/52 - 2/52 {probability of red plus probability of ace minus probability of red ace}
= 28/52 {added and subtracted}
= 7/13 {reduced}

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