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.

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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?

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

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?

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