Answer:
5/8.
Explanation:
we first have to find the total amount of marbles in the bag by adding the blue and green marbles.
15 + 25 = 40
40 is the total.
to get the fraction of green marbles, we do 25 over the total number of marbles,
that is....... 25/40.....then we simplify the fraction by dividing both the numerator and the denominator with a common divisor, which will be 5.
25 ÷ 5 = 5
40 ÷ 5 = 8
hence..... 5/8.