Chapter 11: Q21. (page 634)

Find the sum or difference.
$\frac{4}{5} - \frac{7}{15}$

Short Answer

Expert verified

$\frac{1}{3}$

Step by step solution

Step 1. Given Information.

The provided expression is $\frac{4}{5} - \frac{7}{15}$ .

Step 2. Calculation.

Since, the denominators of the first and second fractions of the expression $\frac{4}{5} - \frac{7}{15}$ are not the same, make the denominators common by multiplying the first fraction by $\frac{3}{3}$ .

$\frac{4}{5} (\frac{3}{3}) - \frac{7}{15} = \frac{12}{15} - \frac{7}{15}$

Subtract the numerators of both obtained fractions to calculate the difference and simplify.

$\begin{matrix} \frac{12}{15} - \frac{7}{15} = \frac{12 - 7}{15} [writedifferenceofnumeratorsoverdenominator] \\ \frac{12}{15} - \frac{7}{15} = \frac{5}{15} [subtract] \\ = \frac{1}{3} \end{matrix}$

Step 3. Conclusion.

The difference is $\frac{1}{3}$ .

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Find the sum or difference.
$\frac{4}{5} - \frac{7}{15}$

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

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Find the sum or difference.45-715

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Statistics

Theoretical and Mathematical Physics

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Discrete Mathematics

Study anywhere. Anytime. Across all devices.

Find the sum or difference.
$\frac{4}{5} - \frac{7}{15}$