Exam 8: Multiplication of Common Fractions

A beam is 32 7/8 feet long. Find 1/8 of its length.

2 1/2 x 1 1/8 gallons.

3/4 x 1/4 inch.

When multiplying fractions by whole numbers, change the whole number to a fraction. Proceed as in multiplying common fractions.

When multiplying two or more common fractions, multiply the numerators and then the denominators. Finally, reduce the fraction to the lowest terms.

Seven pieces of wood each 8 3/8 inches long are needed to build a table. To get all seven pieces from one board, how long must that board be? Allow 2 inches for waste.

A wall is paneled with 15 boards. Each board has a 1 1/8 inch exposed surface. Find the width of the wall in inches.

There are 6 steps in a flight of stairs. The run of each step is 9 1/4 inches. What is the total run of the staircase?

There are 17 risers in the stairs from the basement to the first floor of a house. Find the total height if each rise is 7 1/3 inches high.

3 1/4 x 4 1/2 inches.