Question

a, 8/5 × -3/4 | b, 7/3 × 15/14 | c, (-2,6) × 14 /5

Answer 1

`#\text{nn}`

`a,`

\(\dfrac{8}{5}\cdot\left(-\dfrac{3}{4}\right)\\ =\dfrac{2}{5}\cdot\left(-3\right)\\ =-\dfrac{6}{5}\)

`b,`

\(\dfrac{7}{3}\cdot\dfrac{15}{14}\\ =1\cdot\dfrac{5}{2}\\ =\dfrac{5}{2}\)

`c,`

\(\left(-2,6\right)\cdot\dfrac{14}{5}\\ =7,28\)

Answer 2

a: \(\dfrac{8}{5}\cdot\dfrac{-3}{4}=\dfrac{8\cdot\left(-3\right)}{5\cdot4}=\dfrac{-24}{20}=-\dfrac{6}{5}\)

b: \(\dfrac{7}{3}\cdot\dfrac{15}{14}=\dfrac{7\cdot15}{14\cdot3}=\dfrac{105}{42}=\dfrac{5}{2}\)

c: \(\left(-2,6\right)\cdot\dfrac{14}{5}=-\dfrac{13}{5}\cdot\dfrac{14}{5}=\dfrac{-13\cdot14}{5\cdot5}=-\dfrac{182}{25}\)