Deck 6: Subtraction of Common Fractions

Question 1

3/4 - 5/16 = ____________________/16.

Answer 1

7

Question 2

The lockwasher used on a 3/8-inch bolt has a 17/64-inch inside diameter and a 3/4-inch outside diameter. What is the difference in inches between the inside and outside diameters?

A) 27/64
B) 29/64
C) 31/64
D) 33/64

Answer 2

31/64

Question 3

A mechanic needs an axle shaft key 1/4 inch square. The only available piece of key stock measures 1/4 inch x 5/8 inch. How many inches of stock have to be removed to bring it to proper size?

A) 1/4
B) 3/8
C) 1/2
D) 5/8

Answer 3

3/8

Question 4

An engine specialist works 1 1/8 hours on one car, 3 3/8 hours on another car, and 2 1/4 hours on a third car. How much time remains for another job in an 8-hour working day?

A) 1 1/4
B) 1 1/2
C) 2
D) 2 3/4

Question 5

6 - 3 1/4 = 2 ____________________/4.

Question 6

What is the length of the short end on an automobile leaf spring if the complete spring is 24 inches long and the long end is 18 1/8 inches?

A) 4
B) 4 3/8
C) 5 3/8
D) 5 7/8

Question 7

A truck has an overall length of 15 1/8 meters. A garage is 23 meters long inside. How many meters of clearance space are left if a bench 2 meters wide is placed in front of the truck?

A) 4 1/2
B) 5
C) 5 3/8
D) 5 7/8

Question 8

8 7/8 - 6 1/4 = 2 ____________________/8.

Question 9

A lockwasher has an 11/32-inch inside diameter and a bolt has a diameter of 1/4-inch? What is the difference in diameters?

A) 1/16
B) 3/32
C) 1/8
D) 5/32

Question 10

The outside diameter of a hose is 2 1/2 inches, and the wall is 5/32 inch thick. How large, in inches, is the inside diameter?

A) 1 5/8
B) 2 3/16
C) 2 5/16
D) 2 7/16