1. A painter used $\frac{2}{5}$ of a can of blue paint and $\frac{1}{5}$ of the same can for white paint. What fraction of a can of paint did the painter use in total? The answer is ___.
2. Chloe spent $\frac{3}{10}$ of an hour on math homework and $\frac{4}{10}$ of an hour reading. What is the total fraction of an hour she spent on both activities?
3. A pizza was cut into 8 equal slices. If your family ate $\frac{5}{8}$ of the pizza, what fraction of the pizza is left? The fraction left is ___.
4. A red ribbon is $\frac{5}{6}$ of a meter long. A blue ribbon is $\frac{2}{6}$ of a meter long. How much longer is the red ribbon than the blue ribbon?
5. A recipe for fruit punch requires $\frac{3}{4}$ liter of orange juice and $\frac{1}{4}$ liter of cranberry juice. How many liters of juice are needed altogether? The answer is ___ liter(s).
6. A gardener planted $\frac{2}{7}$ of a field with corn and $\frac{4}{7}$ with beans. To find the total fraction of the field planted, which operation should you use?
7. The park is $\frac{9}{10}$ of a mile from David's house. If he has already walked $\frac{4}{10}$ of a mile, what fraction of a mile does he still have to walk? He has ___ of a mile left.
8. A water jug was $\frac{7}{8}$ full. After watering a plant, it is now $\frac{3}{8}$ full. What fraction of the jug's water was used?
9. To solve the expression $\frac{3}{8} + \frac{4}{8}$ on a number line, you start at $\frac{3}{8}$. In which direction do you move to find the sum?