Question

( - 5 ) x ( \(-\dfrac{34}{21}\) ) x \(\left(-\dfrac{7}{10}\right)\) x \(\left(-\dfrac{3}{17}\right)\)

Answer 1

`(-5) . (-34/21) . (-7/10) . (-3/17)`

`= 5 . 34/21 . 7/10 . 3/17`

`= (5 . 7/10) . (34/21 . 3/17)`

`= 7/2 . 6/21`

`= 42/42`

`= 1`

Answer 2

\(=\left(-5\right)\times\dfrac{\left(-1\right)\times2\times17}{3\times7}\times\dfrac{7}{\left(-5\right)\times2}\times\dfrac{\left(-1\right)\times3}{17}=1\)