Question

A jar contains 40 marbles. First, 13 marbles are removed. Then, one-third of the remaining marbles are

removed. What fraction of the original 40 marbles
remains in the jar?

Answer 1

18/40

or

9/20

Explanation:

13 marbles are initially removed.

40 - 13 = 27

1/3 of that is removed.

27 - 9 = 18

We take whatever is left over (18 marbles), and put it in a fraction to represent what fraction is left over from 40.

18/40

or

9/20