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OpenStudy (anonymous):
3/7 + (-8/21) + 2/3
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OpenStudy (anonymous):
5/7
OpenStudy (anonymous):
can u put the steps?
OpenStudy (anonymous):
\[{3 \over 7} + {-8 \over 21} + {2 \over 3 }\] \[{ 9 \over 21 } + {-8 \over 21} + {14 \over 21 }\] \[{ { 9 -8 + 14 } \over 21 }\] \[{ 15 \over 21 } = { { 15 \over 3 } \over { 21 \over 3 } } = {5 \over 7 }\]
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