`1/9. 2/145- 4 1/3. 2/145+ 2/145` `(-2 7/12): 2 1/7- 1/18: 2 1/7+ 2 2/9: 2 1/7`

`1/9. 2/145- 4 1/3. 2/145+ 2/145`
`(-2 7/12): 2 1/7- 1/18: 2 1/7+ 2 2/9: 2 1/7`

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  1.    $\frac{1}{9}$ x $\frac{2}{145}$ – 4$\frac{1}{3}$ x $\frac{2}{145}$ + $\frac{2}{145}$ 

    = $\frac{1}{9}$ x $\frac{2}{145}$ – $\frac{13}{3}$ x $\frac{2}{145}$ + $\frac{2}{145}$ x 1

    = $\frac{2}{145}$ x ($\frac{1}{9}$ – $\frac{13}{3}$ + 1)

    = $\frac{2}{145}$ x (-$\frac{29}{9}$)

    = -$\frac{2}{45}$ 

       (-2$\frac{7}{12}$) : 2$\frac{1}{7}$ – $\frac{1}{18}$ : 2$\frac{1}{7}$ + 2$\frac{2}{9}$ : 2$\frac{1}{7}$ 

    = (-$\frac{31}{12}$) : $\frac{15}{7}$ – $\frac{1}{18}$ : $\frac{15}{7}$ + $\frac{20}{9}$ : $\frac{15}{7}$ 

    = (-$\frac{31}{12}$ – $\frac{1}{18}$ + $\frac{20}{9}$) : $\frac{15}{7}$ 

    = -$\frac{5}{12}$ : $\frac{15}{7}$ 

    = -$\frac{7}{36}$ 

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