Fractions and mixed numbers are often used in everyday life. Discuss a real-life example in which you would need to add, subtract, multiply, or divide fractions or mixed numbers, and show the math
For most of us, the increasing or decreasing the ingredients of a recipe.
For instance, if a recipe uses 2 1/2 cups of flour and 2/3 cup of sugar, how much of each would you use if you wanted only half a recipe? How much of each would you use if you wanted to triple the recipe?
you would use 1/3 cups of sugar and 1 1/4 cups of flour to half the recipe.
Right.
Sure! One real-life example in which you might need to use fractions or mixed numbers is when cooking or baking. Let's say you are following a recipe to make a cake, and it requires you to use fractions or mixed numbers for measurements.
In this case, let's consider a recipe that requires multiplying fractions. The recipe calls for 1/2 cup of flour, but you want to make a double batch of the cake. To find out how much flour you need, you can multiply the original measurement by 2.
First, you need to convert the mixed number into a fraction. If you have a mixed number like 1 1/2, you can rewrite it as an improper fraction. In this case, it becomes 3/2. So, you have 1/2 cup of flour in the original recipe, which is equivalent to 1/2 * 2/1 = 2/2 cups of flour.
To simplify the fraction, you can see that 2/2 is equal to 1 whole cup. Therefore, to make a double batch of the cake, you will need 1 cup of flour.
So, if the original recipe calls for 1/2 cup of flour, multiplying it by 2 would give you 1 cup of flour.
Remember, depending on the recipe, you may need to add, subtract, multiply, or divide fractions or mixed numbers to ensure you have the correct ingredients and proportions.