3/7+(-5/14)+(-8/21)+5/21=?
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Posted by Indiana Sam 6 years, 9 months ago
- 2 answers
Payal Singh 6 years, 9 months ago
{tex}{3\over 7}+({-5\over 14})+({-8\over 21})+{5\over 21}{/tex}
{tex}= {3\over 7}+({-5\over 14})+({-8+5\over 21}){/tex}
{tex}= {3\over 7}+({-5\over 14})+({-3\over 21}) {/tex}
{tex}= {3\over 7}-{5\over 14}-{3\over 21}{/tex}
{tex}= {18-15-6\over 42}{/tex}
{tex}= {-3\over 42}={-1\over 14}{/tex}l
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Sahdev Sharma 6 years, 9 months ago
{tex}{3\over 7}+({-5\over 14})+({-8\over 21})+{5\over 21}{/tex}
{tex}= {3\over 7}+({-5\over 14})+({-8+5\over 21}){/tex}
{tex}= {3\over 7}+({-5\over 14})+({-3\over 21}) {/tex}
{tex}= {3\over 7}-{5\over 14}-{3\over 21}{/tex}
{tex}= {3\over 7}-{5\over 14}-{1\over 7}{/tex}
{tex}= {2\over 7}-{5\over 14}{/tex}
{tex}= {4-5\over 14}{/tex}
{tex}= {-1\over 14}{/tex}l
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