Primary 5 math question,please help!?

Question

question:A is taller than B by 1/12 of B's height.What fraction of A's height is B's?

Answer 1

A is 13/12 or 1 1/12

B is 12/12 or 1

Answer 2

12/13

Answer 3

Let's say B is 12 cm. A would be 13 cm because it is 1/12 or 1 cm bigger than B. Therefore if B is 12 cm and A is 13 cm so B is 12/13 of A's height.

Answer 4

11/12