Question

In your marble collection, 4/7 off the marbles are blue and 4/21 of the marbles are red. How many times more blue marbles do you have then red marbles?

Answer 1

Answer:

3 times more.

Step-by-step explanation:

We have been given that in a marble collection, 4/7 off the marbles are blue and 4/21 of the marbles are red.

To solve our given problem, we will divide amount of blue marbles by amount of red marbles as:

$\frac{4}{7}\div \frac{4}{21}$

Convert to multiplication problem by flipping the 2nd fraction:

$\frac{4}{7}\times \frac{21}{4}$

$\frac{4\times 21}{7\times 4}$

$\frac{1\times 3}{1\times 1}$

$3$

Therefore, blue marbles are 3 times more than red marbles.

Answer 2

Convert 4/7 to ?/21 which is times 3, therefore, it is 12/21 versus 4/21. 12-4= 8 and so the answer is 8/21 more blue than red.