Reciprocal is just the inverse form a fraction.
For example a/b, the reciprocal is equal to b/a
The question has a fraction of 1 1/9, first we need to convert to improper fraction.
1 1/9 = 10 / 9
The reciprocal of 10 / 9 is equal to 9/10.
1)33
2)60
3)145
I cannot tell what the last picture is asking
It has no correlation so C.
Yes, they are both the same size (they both equal .5)!