The answer would be 2:3.
So basically two - thirds.
Hope this helps and if it does happy studying.
D : because this make so much since duh . && watch yuu get it right !
4.15, 6.3, 8.45, 10.6, 12.75
You just subtract 4.15 from 6.3 and you get a difference of 2.15. Then you add it to 8.45 giving you the answer of 10.6 and then you add 2.15 to that getting 12.75.