| Adding and subtracting fractions of pizzas, pies, and cakes | |
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| Description | |
| Exercise Name: | Adding and subtracting fractions of pizzas, pies, and cakes |
| Math Missions: | 4th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Mathematics I Math Mission |
| Types of Problems: | 2 |
The Adding and subtracting fractions of pizzas, pies, and cakes exercise appears under the 4th grade (U.S.) Math Mission, Arithmetic essentials Math Mission and Mathematics I Math Mission. This exercise uses real-life contextual problems to connect fractions and division.
Types of Problems[]
There are two types of problems in this exercise:
- Find the total and fraction eaten: This problem provides a situation where some people have eaten a pizza, pie or cake. The student is told how much each ate and how many pieces remain, and they are asked to find the fraction that was eaten.
Find the total and fraction eaten
- Find the fraction eaten given the total: This problem provides a situation where a person has eaten some number of pieces of pizza, pie or cake. The student is asked to write the fraction that the person has eaten.
Find the fraction eaten given the total
Strategies[]
Knowledge of fractions as a ratio of part to whole can make these problems clear.
- The fractions do not need to be reduced to be awarded a correct answer.
Real-life Applications[]
- These problems are written as a real-life application, and they can be used in situations other than eating where some of a total of things are completed.
- Fractions are used in real life in many different ways, but they are most commonly used in the cooking, construction and science industries.