Adding and Subtracting Fractions

Adding and Subtracting Fractions

Multiple Choice

What is the top number of a fraction called?

4/5

• Numerator

• Denominator

• Fraction

• Top

Multiple Choice

What is the bottom number of a fraction called?

4/5

• Numerator

• Denominator

• Fraction

• Top

Multiple Choice

What has to be the same in order to add or subtract fractions?

• Numerator

• Denominator

• Fraction

• Top

Adding with like Denominators

​When the denominator is the same you just add the numerators and leave the denominator alone.

Multiple Choice

• 3/12

• 12/6

• 3/6

• 1/6

Multiple Choice

4/8 + 5/8 =

• 9/16

• 1/8

• 9/9

• 9/8

  or

  1 1/8

Multiple Choice

Riley has 2/8 of a chocolate bar. Samantha has 4/8 of a chocolate bar. How much of a chocolate bar do they have combined?

• 6/8

• 2/8

• 6/16

• 2/16

​Subtracting with Like Denominators

​​When the denominator is the same you just subtract the numerators and leave the denominator alone.

Multiple Choice

• 8/8

• 2/8

• 2/0

• 8/0

Multiple Choice

8/9 - 4/9

• 4/9

• 12/9

• 4/0

• 12/0

Multiple Choice

Vanessa has 7/8 of a cake. She gives away 2/8 to her cousin Freddy and 1/8 to her aunt Mary. How much cake does she have left?

• 5/8

• 10/8

• 4/8

• 7/8

​Adding or Subtracting with Unlike Denominators

​In order to add/subtract with unlike denominators you first have to find the least common denominator.

​

​You list out the multiples and find the smallest one they have in common.

​

​Then multiply the numerator and denominator by the multiplier.

​2 x 4 = 8 ​

​-- --

​9 x 4 = 36

Multiple Choice

What is the correct equation with the least common denominator for 2/9 and 3/4?

• 4/36 + 27/36

• 2/36 + 3/36

• 4/9 + 3/36

• 8/36 + 27/36

Multiple Choice

What is the sum for 2/9 and 3/4?

• 5/13

• 5/36

• 35/36

• 35/9

Multiple Choice

Which fraction should Jessica use to find an equivalent fraction for 3/4 in order to add 3/4 with 1/8?

• 2/8

• 7/8

• 6/8

• 5/8

Multiple Choice

Find the correct regrouping fraction:

3 1/3 - 1 2/3

• 2 4/3 - 1 2/3

• 3 4/3 - 1 2/3

• 2 1/3 - 1 2/3

• 3 1/3 - 5/3

Multiple Choice

Solve:

3 1/3 - 1 2/3

• 2 1/3

• 1 2/3

• 2 2/3

• 1 1/3

Multiple Select

Solve:

1/2 + 2/3 + 2/6

• 7/6

• 5/6

• 9/6

• 1 1/2

Multiple Choice

Miranda is baking cookies. She has 1 1/4 cup of flour and 1 1/2 cup of chocolate chips. How many more cups of chocolate chips does she have than flour?

• 2/4 cup

• 2 2/4 cups

• 2 3/4 cups

• 1/4 cup