Rational Number...

The product of rational number $$\dfrac{-2}{3}$$ and its additive inverse is

Find the value of following expression-
$$\dfrac { -4 }{ 5 } \times \dfrac { 3 }{ 7 } \times \dfrac { 15 }{ 16 } \times \dfrac { -14 }{ 9 }$$

Solve following equation-
$$\dfrac { 3 }{ 7 } +\left( \dfrac { -6 }{ 11 }  \right) +\left( \dfrac { -8 }{ 21 }  \right) +\left( \dfrac { 5 }{ 22 }  \right)$$

Find,
$$\dfrac { -2 }{ 3 } \times \dfrac { 3 }{ 5 } +\dfrac { 5 }{ 2 } -\dfrac { 3 }{ 5 } \times \dfrac { 1 }{ 6 }$$

State which property is used in following operation-
$$\dfrac { -19 }{ 29 } \times \dfrac { 29 }{ -19 } =1$$

Find
$$\dfrac { 2 }{ 5 } \times \dfrac { -3 }{ 7 } -\dfrac { 1 }{ 14 } -\dfrac { 3 }{ 7 } \times \dfrac { 3 }{ 5 }$$

Find multiplicative inverse of the following-
$$\dfrac { -5 }{ 8 } \times \dfrac { -3 }{ 7 }$$

Name which property is used in following operation-
$$\dfrac { 1 }{ 2 } \times \left( 5\times \dfrac { 2 }{ 5 }  \right) =\left( \dfrac { 1 }{ 2 } \times 5 \right) \times \dfrac { 2 }{ 5 }$$

Name the property which is used in following operation-
$$\dfrac { -4 }{ 5 } \times 1=1\times \dfrac { -4 }{ 5 } =\dfrac { -4 }{ 5 }$$

Solve
$$\dfrac { 2 }{ 5 } \times \left( \dfrac { -3 }{ 7 }  \right) -\dfrac { 1 }{ 6 } \times \dfrac { 3 }{ 2 } +\dfrac { 1 }{ 14 } \times \dfrac { 2 }{ 5 }$$