Question

evaluate 7/9*-1/2 - 7/9*-3/2​

Answer 1

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$\dag$ Simplifying :

➳$\dfrac {7}{9} × \dfrac {-1}{2} - \dfrac {7}{9} × \dfrac {-3}{2}$

• Multiplying on both equation.

➳$\dfrac {-7}{18} - \dfrac {-21}{18}$

• Finding there difference.

➳$\dfrac {-7-(-21)}{18}$

➳$\dfrac {-7+21)}{18}$

➳$\dfrac {14}{18}$

• Changing into simplest form.

➳$\dfrac {7}{9}$

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