Add and Subtract Fractions w/ Unlike Denominators

Turn & Talk

Explain what needs to happen in order to add these two fractions.

5/9 + 5/12

In order to add these two fractions we must _________.

Maria combines the amount of flour and sugar show in the models. What is the total amount of flour and sugar in Maria’s recipe?

You are making cranberry lemonade for the Tastiest Beverage contest. You use 3/10 liter cranberry juice and 1/2 liter lemonade. You drink 1/10 liter, just to be sure it tastes delicious. How much cranberry lemonade do you have left?

Multi-Step

The picture shows how much pizza was left over from lunch. Jason eats 1/4 of the whole pizza for dinner. How much pizza is remaining after dinner?

Sara ate 1/3 of a pizza and Alex ate 1/6 of a pizza. How much pizza did Sara and Alex eat altogether?

Simplify your answer.

Timothy placed 1/6 stick of butter in the mixing bowl. Jared placed 3/4 stick of butter in the mixing bowl. How much butter was in the mixing bowl?

Simplify your answer.

7/8 of an apple pie was sitting on the table. Mary came home from school and ate 1/4 of the pie. How much apple pie is remaining?

Simplify your answer.

Simon has 11/12 basket pizza fries. He ate 2/3 of the basket. How much of a basket of pizza fries are left?

Simplify your answer.

Sherry brought a half pound of cheese for her grandma's homemade cheese dip. Tonya brought 2/5 pound of cheese for the cheese dip. How much cheese is in the cheese dip?

Simplify your answer.

There is 11/12 kilogram of flour in the flour jar. Sue used 3/4 kilogram of flour to make Christmas cookies. How much flour was left in the flour jar?

Simplify your answer.

Frank cut a piece of rope that was 1/8 yard long. Pat cut a piece of rope that was 3/4 yard long. If Frank and Pat aligned both pieces of rope tip to tip in a straight line, how long was the rope?

Simplify your answer.

Harold's truck has 1/12 gallon of oil in it. If he adds 5/6 gallon of oil to his truck, how much oil does Harold have in his truck?

Simplify your answer.

For a super bowl party, the Smith family has 9/10 pound of taco dip.

- Sally ate 1/4 pound

- Stan ate 1/8 pound

- Levi ate 1/8 pound

How much of the taco dip was remaining after the party?

Simplify your answer.

Rachael adds 7/10 ounce of sugar to her coffee. After taking a sip, she decided to add another half ounce of sugar to her coffee. How much sugar did Rachael add to her coffee?