Question

Evalute: (a) (-11) /12+7/18+5/(-9)

Answer 1

$\underline{\Large\mathbf{Question}}$

$\bf - \frac{ 11}{12} + \frac{7}{18} + ( - \frac{5}{9} )$

$\underline{\underline{\huge\mathfrak{Solution}}}$

$\bf L.C.M \: of \: 12, \: 18 \: and \: 9 \: is \: 36 \\ \\ = \frac{ - 11 \times 3 + 7 \times 2 - 5 \times 4}{36} \\ \\ = \frac{ - 33 + 14 - 20}{36} \\ \\ = \frac{ - 53 + 14}{36} \\ \\ = - \frac{39}{36} \\ \\ \bf = - \frac{13}{12}$

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