Adding Subtracting Fractions with Like Denominators and Multiplying by Whole Number

When adding or subtracting fractions, I must always have a (a)   . I then add or subtract the ​ (b)   and keep ​ (c)   the same.

• Common Denominator

• Numerators

• Denominator

• Common Numerators

• Divisor

• Dividend

Which option represents the sum of 3 1/2 and 2 2/3?

• 5 7/6

• 6 1/6

• 5 1/6

• 6

Answer explanation

To find the sum of 3 1/2 and 2 2/3, convert both to improper fractions (7/2 + 8/3). Find a common denominator, which is 6, then add the fractions to get 29/6, which simplifies to 4 5/6 or 5 1/6.

After a pizza party there are 4 2/3 pizzas left over. If the pizzas are divided so that party goers can take home 1/6 of a pizza, how many guests can take home pizza?

• 26 guests

• 28 guests

• 8 guests

• 33 guests

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Bob has a piece of wood that is 3/4 inches long. He decides to cut pieces that are 1/8 inches long. How many pieces can Bob cut?

• 6

• 9

• 3

• 12

Sammy has 2 ²/₃ Hershey bars to share with 4 of her friends.  How much of a Hershey bar will each of her 4 friends receive?

• ¹/₃ Hershey bar each

• ⁵/₃ Hershey bar each

• ²/₃ Hershey bar each

• 1 ³/₄ Hershey bar each

If you have 3/4 of a pizza, how many equal parts is the pizza divided into?

• 4

• 2

• 8

• 6

How do you add fractions with like denominators?

• Subtract the numerators and denominators

• Divide the numerators and denominators

• Multiply the numerators and denominators

• Add the numerators and keep the denominator the same.