A jar contains 28 red marbles numbered 1 to 28 and 46 blue marbles numbered 1 to 46. A marble is drawn at random from th

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A jar contains 28 red marbles numbered 1 to 28 and 46 blue
marbles numbered 1 to 46. A marble is drawn at random from the jar.
Find the probability of the given event. Please enter
reduced fractions.

a. The marble is odd-numbered. P(odd)=

b. The marble is red or odd-numbered. P(red or odd)
=

c. The marble is blue or even-numbered. P(blue or even)
=
please explain step by step thank you so much !