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OpenStudy (anonymous):
estimate the sum or difference 11/12-1/7
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OpenStudy (anonymous):
\[\frac{65}{84} \]
jhonyy9 (jhonyy9):
- fisrt you need to get the denominator common
OpenStudy (anonymous):
\[\frac{a}{b}-\frac{c}{d}=\frac{a d-b c}{b d} \]
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