Deck 7: Subtraction of Common Fractions

Question 1

Subtract 2 1/4 inches from 4 3/4 inches.

Answer 1

2 1/2

Question 2

To subtract a fraction from a whole number or a mixed number, express the whole number as an improper fraction, with a denominator common to the denominator of the fraction.

Answer 2

True

Question 3

Subtract 1/3 inch from 3/4 inch.

Answer 3

5/12

Question 4

Subtract 1/4 from 3/4.

Question 5

A countertop is laminated with 1/4 inch plastic. The total thickness is 1 1/2 inch. What is the thickness of the top without the laminate?

Question 6

The thickness of a piece of three-ply wood is 3/4 inch. It was made by gluing 1/4 inch veneer to both faces of a core. Find the thickness of the core stock.

Question 7

Fractions must be expressed with common denominators before subtracting.

Question 8

A rough board 2/3 inch wide has 1/3 inch taken off by planing on one edge. What is its width?

Question 9

Subtract 1/4 from 6.

Question 10

Find the thickness of a board 5/8 inch thick after 1/3 inch is planed off one side.