1/6
1) Since Tia spins spinner A once, and spins B once too, and each spinner has 4 sectors. Then we can write out:
2) The probability of getting green is the result of blue + yellow:
Note that the spinner B the yellow part is half of the spinner area. And the blue sector is equivalent to 1/6 if we trace two line on the second spinner.

Since the question is one or the other, then we can add both probabilities:

Hence, the answer is the probability of Tia getting green is 1/6