Message from Deleted User in MacGuyver - Skills & Academics #homework-help


2018-01-30 04:39:21 UTC  

Order of operations

2018-01-30 04:39:33 UTC  

Yep did that

2018-01-30 04:40:11 UTC  

Would a photo help for reference?

2018-01-30 04:40:15 UTC  

Yes

2018-01-30 04:40:17 UTC  

Yes.

2018-01-30 04:41:07 UTC  

https://cdn.discordapp.com/attachments/387060078433271808/407757094184288274/image.jpg

2018-01-30 04:41:43 UTC  

How do I get 1/24?

2018-01-30 04:42:13 UTC  

When I multiply I get 54/1296 and i don't know how to reduce it because I'm bad at fractions

2018-01-30 04:44:07 UTC  

Simplify 6/9 * 9/144

2018-01-30 04:44:19 UTC  

The 9s cancel out

2018-01-30 04:44:33 UTC  

54/54 = 1 and 1296/54 = 24

2018-01-30 04:44:39 UTC  

And 6 goes into 144 24 times

2018-01-30 04:45:07 UTC  

So cancelled out the 9s and divide 6/144 ?

2018-01-30 04:45:12 UTC  

Is that mastering physics but for math

2018-01-30 04:45:16 UTC  

Yes

2018-01-30 04:45:36 UTC  

Or what @micbwilli said

2018-01-30 04:45:42 UTC  

Either works

2018-01-30 04:45:57 UTC  

Okay thanks @GetOffMyState#8267

2018-01-30 04:46:32 UTC  

@micbwilli could you explain your way a bit more? How do you know that's what your supposed to do?

2018-01-30 04:48:52 UTC  

https://cdn.discordapp.com/attachments/387060078433271808/407759046565822476/image.jpg

2018-01-30 04:49:16 UTC  

Both rely on what I did above with another example

2018-01-30 04:51:18 UTC  

For your example think about how 6/9 * 9/144 = 9/9 * 6/144

2018-01-30 04:51:42 UTC  

The 9/9 is 1 and can therefore be ignored

2018-01-30 04:51:50 UTC  

If you are trying to reduce a fraction start with a common number and just work down.

So like with 54/1296, both are multiples or 9. I knew 54 was and I checked 1296. That's 6/144. I see if 6 can be used to divide 144, and since it can it becomes 1/24.

2018-01-30 04:52:46 UTC  

6/144 = 6 /(24 * 6) = 6/6 * 1/24

2018-01-30 04:53:01 UTC  

If you are unsure there to start diving top and bottom by 2 works if both numbers are even.

2018-01-30 04:53:17 UTC  

^ this

2018-01-30 04:57:50 UTC  

This is so complicated lol. Okay. So just find the GCD and then reduce it down.

2018-01-30 04:58:18 UTC  

Or in this case, I could just divide 6/144

2018-01-30 04:58:25 UTC  

Right?

2018-01-30 04:58:29 UTC  

Yes

2018-01-30 04:58:56 UTC  

Because the 9s happen to cancel out

2018-01-30 04:59:06 UTC  

And if it's not a problem where it can cancel out then what?

2018-01-30 05:00:10 UTC  

You can find the GCD

2018-01-30 05:01:22 UTC  

Okay

2018-01-30 05:02:17 UTC  

Thanks. Yall

2018-01-30 05:04:21 UTC  

On another note, why do we teach PEMDAS when it should be PEDMSA?

2018-01-30 05:05:21 UTC  

Multiplication and division are the same really

2018-01-30 05:05:35 UTC  

Same with addition and subtraction

2018-01-30 05:05:50 UTC  

So PEMDAS is easier to remember