Find the number that completes the equation. 2/7 divided by ___ = 2/21

Question

A 2/7 B 1/3 C 3 D 21/2 Please help me I divide each of these numbers by 2/7 but I can't tfind the answer? I just need help explaining what I did wrong plz.

Answer 1

The answer is B 1/3. To solve this equation, you need to multiply both sides by the same number so that the denominator on the left side is equal to the denominator on the right side. In this case, you need to multiply both sides by 7/2. This will give you:

2/7 * (7/2) / (___ * (7/2)) = 2/21 * (7/2)

Simplifying this equation gives you:

2/7 / ___ = 2/3

Now, you can solve for the unknown by dividing both sides by 2/7, which gives you:

___ = 2/3

Therefore, the answer is B 1/3.

Answer 2

Thank you

Answer 3

This is the first question I asked on here I was nervouse to ask. Thank you for your help.

Answer 4

unfortunately, the answer is 3

2/7 * 1/3 = 2/21

and why are you dividing by 2/7? The task was to divide 2/7 by one of the choices.

Answer 5

We want
2/7 ÷ x = 2/21
2/7 = (2/21)x
x = (2/7)(21/2) = 3 as oobleck noted

Answer 6

Thanks All of you

Answer 7

Stop crushing the poor guy this is the question and you guys should help him/her answer it. plus he/she just wanted to know what they were doing wrong.

Answer 8

Thanks Wally SuS, There's two wally sus, but just captilized diffrent, one looks like this wally SuS and the other one that just answerd.