Question

http://prntscr.com/63xmby

Answer 1

Just plug in 18 / 21 in your calculator..then divide the rest and see which one equals the same thing.

Answer 2

2/3

Answer 3

@rosebud4612flvs Please do not give answers, it's against OpenStudy's Code-of-Conduct. We are here to guide the user to the answer, so we need his participation.

http://openstudy.com/code-of-conduct

Plus your answer is incorrect.

Answer 4

nope

Answer 5

Sorry, I'm new. No need to freak out.

Answer 6

how would i do that

Answer 7

I'm not freaking out, I'm just telling you the rules :)

Answer 8

Plug in 18 / 21 in your calculator, tell me what you get.

Answer 9

1.1666666667 ? idk

Answer 10

just plug in the other number and see which one gets the same thing

Answer 11

Um, no that doesn't work..

Let's just cross multiply and see if we get equal sides.

\(\dfrac{18}{21} = \dfrac{1}{3}\)

Cross multiply 18 * 3 and 21 * 1

Answer 12

54/21

Answer 13

OR try looking for a number that has 18 and 21 as a multiple. Since 18 and 21 are 3 digits apart (21-18=3), the highest number you can try out is 3. If 18 and 21 are a multiple of 3, divided them by 3. If they are multiple of 2 divide them by 2...

Answer 14

54 = 21

Actually

So 52 does not equal 21, so 1/3 is incorrect.

\(\dfrac{18}{21} = \dfrac{30}{35}\)

18 * 35 and 21 * 30

Answer 15

its 630

Answer 16

Yes, for both..18 * 35 = 630, and 21 * 30 = 630

Therefore, 30/35 is the correct answer.

Answer 17

thank you for helping me