Yes it is; note if you multiply numerator & denominator by 2 the fractions are the same.
18-(-16) = 34
Yes
No.
4 multiplied by 4 is equal to 16 .5 multiplied by 4 is equal to 2 16 added to 2 equals 18
27
918 divided by 18 equal 51.
-18/-1 =18
18
0.1667
12
0.6667
18