Chapter 11: Q. 4 (page 610)

Find the sum or difference.
$- \frac{5}{7} + \frac{2}{7}$

Short Answer

Expert verified

$- \frac{3}{7}$

Step by step solution

Step 1. Given Information.

The provided expression is $- \frac{5}{7} + \frac{2}{7}$

Step 2. Calculation.

Since, the denominators of the first and second fractions of the expression $- \frac{5}{7} + \frac{2}{7}$ are the same, subtract the numerators of both fractions to calculate the difference.

$\begin{matrix} - \frac{5}{7} + \frac{2}{7} = \frac{- 5 + 2}{7} [writedifferenceofnumeratorsoverdenominator] \\ - \frac{5}{7} + \frac{2}{7} = - \frac{3}{7} [subtract] \end{matrix}$

Step 3. Conclusion.

The difference is $- \frac{3}{7}$

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Find the sum or difference.
$- \frac{5}{7} + \frac{2}{7}$

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.−57+27

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.
$- \frac{5}{7} + \frac{2}{7}$