Answer:
There were 2 1/2 inches of rain in 2 months.
Explanation:
1. Reduce 1 6/12 to 1 1/2.
2. Add 1 1/2 and 1 (if it is easier for you to add decimals you can reduce the 1 1/2 to 1.5 by dividing 1 by 2. In that case you would get 2.5 as your final answer). The answer is 2 1/2.