Final answer:
Explanation on finding the fractions of white and black marbles in a given scenario.
Explanation:
To find the fraction representing the white marbles, you divide the number of white marbles by the total number of marbles: 25 white marbles out of 45 total marbles => 25/45. For the black marbles, you do the same: 20 black marbles out of 45 total marbles => 20/45.
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