Fraction Subtraction

Which of the following could be a common denominator for

2/3 and 1/4?

• 7

• 12

• 3

• 4

Solve.

2/3 - 1/4

• 1/12

• 3/12

• 5/12

• 1/7

Tags

CCSS.7.NS.A.1C

What is another way to think of 4 wholes?

• 3 5/5

• 4 5/5

• 4/5

• There is no other way.

Tags

CCSS.3.NF.A.3C

Solve.

4 - 2 1/5

• 1 4/5

• 2 1/5

• 6 1/5

• 2 4/5

Tags

CCSS.7.NS.A.1C

Which of the following could be a common denominator for 3/7 and 2/3?

• 10

• 7

• 3

• 21

4 21/21 is the same as __________.

• 25/21

• 4

• 25

• 5

Tags

CCSS.3.NF.A.3C

Solve.

5 3/7 - 3 2/3

• 2 5/21

• 1 16/21

• 2 1/7

• 1 1/3

Tags

CCSS.7.NS.A.1C

Solve.

5 2/5 - 4 1/3

• 1 16/15

• 1 1/8

• 1 1/15

• 1 1/3

Tags

CCSS.7.NS.A.1C

Solve.

6 1/8 - 3 2/7

• 2 47/56

• 3 47/56

• 3 1/15

• 2 1/15

Tags

CCSS.7.NS.A.1C

Solve.

4/7 - 1/2

• 3/14

• 3/9

• 1/14

• This cannot be solved.

Tags

CCSS.7.NS.A.1C