Question

(-0.75 -1/4) : (-5) + 1/15 - (-1/5) : (-3)

Answer 1

=(-3/4-1/4):(-5)+1/15-1/15

=1/5

Answer 2

`(-0,75-1/4):(-5)+1/15-(-1/5):(-3)`

`= (-3/4-1/4)(-1/5)+1/15+1/5(-1/3)`

`= (-4/4)(-1/5)+1/15+(-1/15)`

`= -1.(-1/5)+1/15+(-1/15)`

`= 1/5+0`

`=1/5`

Answer 3

\(\left(-0,75--\dfrac{1}{4}\right):\left(-5\right)+\dfrac{1}{15}-\left(-\dfrac{1}{5}\right):\left(-3\right)\\ =\left(-0,75-0,25\right):\left(-5\right)+\dfrac{1}{15}+\dfrac{1}{5}:\left(-3\right)\\ =1:\left(-5\right)+\dfrac{1}{15}+\dfrac{-1}{15}\\ =\dfrac{1}{5}\left(\dfrac{1}{15}+\dfrac{-1}{15}\right)\\ =\dfrac{1}{5}+0\\ =\dfrac{1}{5}\)