You mean 28 divided by 7 bc thats 4 and for the other thing that is not the correct thing and it could never be true soooo.
They are the same. deci means 10 (think decade is 10 years) so decimeter is cm/10 so 30/10=3decimeters
So hmm notice the picture below
thus
so, is clearly not 0, so it has to be 1.74
So, for each one you are trying to complete a full rotation or 360°. This means that you should add up all of the numbers and subtract that from 360.
#1. 360-279=81°
#2. 360-281=79°
For 12 you could say " I know 2/3 is greater than 7/12 because 2 out of three is almost one and 7/12 is not and for 1 the order would be three fifths five six then seven eighths in the order for two it would be 4/10 7/12 1/2 in that order
