Understanding Fractions: Addition and Subtraction

What is a fraction?

• A part of a whole

• A negative number

• A decimal number

• A whole number

Which of the following is an example of similar fractions?

• 1/2 and 2/3

• 3/4 and 4/5

• 5/9 and 7/9

• 1/3 and 2/5

What is the first step in adding or subtracting dissimilar fractions?

• Subtract the numerators

• Simplify the fractions

• Multiply the denominators

• Add the numerators

In the example of adding 5/9 and 1/3, what is the new denominator after multiplication?

• 3

• 9

• 27

• 18

What is the simplified form of the sum of 5/9 and 1/3?

• 1/3

• 5/9

• 24/27

• 8/9

In the subtraction example, what is the result of 3/4 minus 2/3?

• 1/3

• 1/4

• 1/6

• 1/12

What is the simplest form of the difference between 3/4 and 2/3?

• 4/12

• 3/12

• 2/12

• 1/12

What is the sum of 1/5 and 1/2 in the practice problems?

• 1/5

• 1/2

• 7/10

• 3/10

What is the difference between 4/5 and 2/3 in the practice problems?

• 5/15

• 2/15

• 3/15

• 4/15

What is the sum of 1/4 and 2/5 in the practice problems?

• 11/20

• 14/20

• 12/20

• 13/20