15.3 Add and Subtract Mixed Numbers to Solve Problems

15.3 Add and Subtract Mixed Numbers to Solve Problems

I can use visual models and equations to add and subtract mixed numbers with like denominators.

Fill in the Blank

Alfredo picked 2 3/4 pounds of peaches from the tree in his backyard. He gave 1 1/4 pounds to his neighbor Madeleine. How many pounds of peaches does Alfredo have left?

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Multiple Select

Which problems have a sum or difference of 3/12? Choose all that are correct.

• 7/12 - 4/12

• 1/12 + 2/12

• 6/12 - 2/12

• 3/12 + 1/12

• 1/12 + 1/12 + 1/12

Spark Your Learning

A diner serves fresh bread with certain meals. At the end of the night, there are 1​ 3/4​ loaves of whole wheat bread left and 1 ​2/4​ loaves of white bread left. How many loaves of bread does the diner have at the end of the night?

Fill in the Blank

What is 1 3/4 + 1 2/4?

Build Understanding

A diner sells pie by the slice. At the end of the night, they have the following slices left. How much pie is left?

Multiple Choice

Step 1: How many whole pies do we have?

• 5

• 3

• 4

Multiple Choice

Step 2: How many pieces of pie do we have? This is represented as a fraction out of 6.

• 2/6

• 4/6

• 5/6

• 1/6

Fill in the Blank

So if we have 3 whole pies and 5/6 of a pie in slices, how much pie do we have in total?

Step it Out

At the start of the day, the diner has this bag of potatoes. During breakfast, they serve 8 ​4/8

​ pounds of potatoes. How many pounds of potatoes remain?

Fill in the Blank

Step 1: What is 9 7/8 - 8 4/8

Step 2: Look at this gif of Julie and the Phantoms