Question

where are three places you might add or subtract fractions? explain using details from the lesson. ready? enter your answer here

Explanation:

1. Cooking/Baking: When adjusting recipes (e.g., halving a recipe that uses $\frac{3}{4}$ cup of flour, you might calculate $\frac{3}{4}-\frac{3}{8}=\frac{3}{8}$ or doubling a recipe with $\frac{1}{3}$ cup of sugar, $\frac{1}{3}+\frac{1}{3}=\frac{2}{3}$).
2. Measuring Lengths: In carpentry or sewing, if a board is $2\frac{1}{2}$ feet long and you cut off $\frac{3}{4}$ feet, you subtract: $2\frac{1}{2}-\frac{3}{4}=1\frac{3}{4}$ feet. Or joining two pieces: $1\frac{1}{3}+2\frac{1}{4}=3\frac{7}{12}$ feet.
3. Financial Budgeting: If you allocate $\frac{1}{5}$ of your income to savings and $\frac{1}{4}$ to rent, finding total allocated: $\frac{1}{5}+\frac{1}{4}=\frac{9}{20}$ of income, or finding remaining: $1 - (\frac{1}{5}+\frac{1}{4})=\frac{11}{20}$.

These scenarios involve adding/subtracting fractions to solve practical problems.

Answer:

1. Cooking/Baking: Adjusting recipe quantities (e.g., scaling servings) requires adding/subtracting fractions (e.g., halving $\frac{3}{4}$ cup flour: $\frac{3}{4}-\frac{3}{8}=\frac{3}{8}$ cup).
2. Measuring (Carpentry/Sewing): Cutting/joining materials (e.g., a $2\frac{1}{2}$ - foot board minus $\frac{3}{4}$ foot: $2\frac{1}{2}-\frac{3}{4}=1\frac{3}{4}$ feet).
3. Budgeting: Allocating income (e.g., $\frac{1}{5}$ to savings + $\frac{1}{4}$ to rent = $\frac{9}{20}$ of income, or finding remaining: $1 - \frac{9}{20}=\frac{11}{20}$).