Question

7/12 - 57/36 . -6/19 + -1/42 : (-5/7)

Answer 1

\(=\dfrac{7}{12}-\dfrac{57.\left(-6\right)}{39.19}-\dfrac{1}{42}.\dfrac{-7}{5}\\ =\dfrac{7}{12}-\left(-\dfrac{1}{2}\right)-\left(-\dfrac{1}{30}\right)\\ =\dfrac{7}{12}+\dfrac{1}{2}+\dfrac{1}{30}\\ =\dfrac{7.5+30+2}{60}\\ =\dfrac{67}{60}\)

Answer 2

\(\dfrac{7}{12}-\dfrac{57}{36}.\left(\dfrac{-6}{19}\right)+\dfrac{-1}{42}:\left(\dfrac{-5}{7}\right)\\ =\dfrac{7}{12}+\dfrac{1}{2}+\dfrac{1}{30}\\ =\dfrac{67}{60}\)

Answer 3

`(7)/(12)-(57)/(36).(-6)/(19)+(-1)/(42):(-5)/(7)`

`=(7)/(12)-(19)/(12).(-6)/(19)-(1)/(42).(-7)/(5)`

`=(7)/(12)+(19.6)/(2.6.19)+(7)/(7.6.5)`

`=(7)/(12)+(1)/(2)+(1)/(30)`

`=(7.5+1.30+1.2)/(60)`

`=(35+30+2)/(60)=67/60`

Answer 4

\(\dfrac{7}{12}-\dfrac{57}{36}\cdot\dfrac{-6}{19}+\dfrac{-1}{42}:\left(\dfrac{-5}{7}\right)\)

\(=\dfrac{7}{12}-\dfrac{56}{36}\cdot\dfrac{-6}{19}+\dfrac{-1}{42}\cdot\dfrac{-7}{5}\)

\(=\dfrac{7}{12}+\dfrac{1}{2}+\dfrac{1}{30}\)

\(=\dfrac{67}{60}\)

Answer 5

\(\dfrac{7}{12}-\dfrac{57}{36}\cdot\dfrac{-6}{19}+\dfrac{-1}{42}:\dfrac{-5}{7}\)

\(\dfrac{7}{12}-\dfrac{-1}{2}+\dfrac{1}{30}=\dfrac{67}{60}\)

Answer 6

=\(\dfrac{7}{12}-\dfrac{-1}{2}+\dfrac{1}{30}=\dfrac{13}{12}+\dfrac{1}{30}=\dfrac{67}{60}\)

Answer 7

\(\dfrac{7}{12}-\dfrac{57}{36}.-\dfrac{6}{19}+-\dfrac{1}{42}:\left(-\dfrac{5}{7}\right)\)
\(=\dfrac{7}{12}-\dfrac{19.-6}{12.19}+-\dfrac{1.-7}{42.5}\)\(=\dfrac{7}{12}+\dfrac{1}{2}+\dfrac{1}{30}\)\(=\dfrac{35+30+2}{60}=\dfrac{67}{60}\)