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Add Do Not Use a Number Line Except as a Check

Question 138

Multiple Choice

Add. Do not use a number line except as a check.
- $-\frac{6}{7}+\frac{5}{7}$

A) $\frac{11}{7}$
B) $\frac{1}{7}$
C) $-\frac{1}{7}$
D) $-\frac{11}{7}$

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