Question

The water level at Lake Penny changed −1 1/10 in. this year. Next year, it is predicted to change another −1 2/5 in. What is the total change that will likely occur in 2 years? Enter your answer as a simplified mixed number in the box. 20 POINTS

Answer 1

add 1 1/10 + 1 2/5

first get both fractions with the same bottom number: 2/5 = 4/10 ( multiply both numbers by 2)

so now you have 1 1/10 + 1 4/10 = 2 5/10

5/10 reduces to 1/2

so answer is 2 1/2 inches, and since the level is going down it would be negative 2 1/2 inches