Lesson 4: Add Fractions with Denominators of 10 and 100 — Practice Questions

1. 1. Find the sum: $\frac{4}{10} + \frac{15}{100} = \frac{}{100}$.

2. 2. What is the sum of $\frac{2}{10}$ and $\frac{47}{100}$?

   • A. $\frac{49}{110}$
   • B. $\frac{67}{100}$
   • C. $\frac{49}{100}$
   • D. $\frac{247}{100}$

3. 3. Calculate the total value: $\frac{7}{10} + \frac{9}{100} = $ ___. Give the answer as a fraction.

4. 4. To add $\frac{5}{10} + \frac{21}{100}$, which equivalent fraction should you use for $\frac{5}{10}$?

   • A. $\frac{5}{100}$
   • B. $\frac{50}{10}$
   • C. $\frac{50}{100}$
   • D. $\frac{10}{50}$

5. 5. On a 100-part grid, you shade 8 tenths and then 14 hundredths. In total, you have shaded $\frac{}{100}$ of the grid.

6. 6. Which expression has the same value as $\frac{1}{10} + \frac{35}{100}$?

   • A. $\frac{10}{100} + \frac{35}{100}$
   • B. $\frac{1}{100} + \frac{35}{100}$
   • C. $\frac{10}{10} + \frac{35}{100}$
   • D. $\frac{1}{10} + \frac{350}{100}$

7. 7. Solve for the unknown numerator: $\frac{9}{10} + \frac{3}{100} = \frac{n}{100}$. The value of $n$ is ___.

8. 8. What is the sum of $\frac{3}{10}$ and $\frac{30}{100}$?

   • A. $\frac{33}{110}$
   • B. $\frac{33}{100}$
   • C. $\frac{60}{100}$
   • D. $\frac{6}{100}$

9. 9. Convert the fraction $\frac{7}{10}$ into an equivalent fraction with a denominator of 100. Write the new numerator in the blank. $\frac{7}{10} = \frac{\_\_\_}{100}$

10. 10. Convert the fraction $\frac{40}{100}$ into an equivalent fraction with a denominator of 10. Write the new numerator in the blank. $\frac{40}{100} = \frac{\_\_\_}{10}$