Answer:
7/18
Explanation:
Since the denominators are different, we need to find a common denominator. We can convert them both to fractions with a denominator of 18, because 18 is the LCM (least common multiple) of the denominators.
To make 2/9 a new fraction, we can simply multiply both sides of the fraction sign by 2, because 2*9=18. This gives us 4/18.
We can do the same for 1/6, but multiply by 3, because 3*6=18. That gives us 3/18.
Now that the denominators are equal, we have the expression 4/18 + 3/18, and we can add the fractions easily now to get 7/18.
7 is a prime number, so 7 and 18 will not have any common factors, except 1. So, the fraction cannot be simplified any further.