Respuesta :

this is one method of finding the answer for this,

3:4, 3+4=7

3 part=3/7×280
= 120

4 part =4/7×280
=160
answer=
3:4
120:160
hope it helps....
Just in case you didn't understand them :)

So we start off by breaking it down!!
3:4, 3+4=7 

In other words (or any at that lol) we find out that 280 can be broken off into 3 parts!

3 part=3/7×280  = 120
giving us 120 as the end result! 

We also find out that 280 can be broken off into 4 parts!

4 part =4/7×280=160
Leaving us with 160

Meaning that now, we put the two new found ratios together to create our answer!! :)

So, 3:4 now equals 120:160

So your answer will be 120:160

 I hope this helps, I know that it helps for me when someone breaks it down for me! :)