Question

Mary has 12 marbles 3/12 of the marbles are yellow 2/12 of the Marvels are blue The rest of the marbles are green How many marbles are green Explain how you know

Answer 1

Seven marbles are green.

Explanation:

you have a total of 12 marbles.

12-3 (yellow) = 9

9-2 (blue) = 7

3 (yellow) + 2 (blue) = 5

12 (total) - 5 (yellow and blue) = 7

Answer 2

Answer: 7 marbles are green.

Explanation:

Since we have 12 marbles in total, 12/12 = 1. Since the fractions have denominators of 12 as well, we can easily tell there are 3 yellow marbles (3/12) and there are 2 blue marbles (2/12).

Lastly, we need to find how many are green. We can subtract the yellow and blue marbles from the total of 12 marbles.

12 - (3 + 2)

12 - (5)

7 marbles are green.