Question

18/-36-54/81-60/90+-2/5

Answer 1

\(\dfrac{18}{-36}-\dfrac{54}{81}-\dfrac{60}{90}+\dfrac{-2}{5}\\ =\dfrac{-1}{2}-\dfrac{2}{3}-\dfrac{2}{3}+\dfrac{-2}{5}\\ =\dfrac{-15}{30}-\dfrac{20}{30}-\dfrac{20}{30}+\dfrac{-12}{30}\\ =\dfrac{-15-20-20+\left(-12\right)}{30}\\ =\dfrac{-67}{30}\)

Answer 2

- 67/30

Answer 3

=−1/2−2/3−2/3+−2/5

=−15/30−20/30−20/30+−12/30

=−15−/0−20+(−12)30

=−67/30