Adding and Subtracting Mixed Numbers to Lowest

Mark uses 3 1/8 pounds of seed to fill the bird feeders in his backyard, but he only has 1 1/2 pounds of seeds. How much seed does he need to buy?

• A. 1 3/4

• B. 2 5/8

• C. 2 3/4

• D. 1 5/8

Anna played tennis for 2 1/4 hours on Saturday and 1 4/5 hours on Sunday. How many hours did she play tennis during the weekend?

• A. 3 2/3 hrs

• B. 4 1/20 hrs

• C. 4 7/20 hrs

• D. 3 3/10 hrs

The Smythe baby gained 3 3/8 pounds last month and 1 5/6 pounds this month. How much did she gain in both months together?

• A. 4 10/48 lbs

• B. 4 4/7 lbs

• C. 5 lbs.

• D. 5 5/24 lbs

• 5 7/12
• 4 7/12
• 5 5/12
• 4 5/12

What is the first step when adding and subtracting mixed numbers?

• Write the numbers vertically, or on top of each other.

• Add the fractions, then subtract.

• Add the whole numbers.

6 - 2 4/5

• 4 4/5

• 3 9/5

• 3 1/5

• 4 2/5

What is the value of this expression?
6 7/8 + 4 3/4 + 8 1/2

• 20 1/8

• 19 3/8

• 18 11/14

• 18 1/2

• 4 9/15
• 4 1/4
• 4