Question

Thực hiện phép tính:

\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)\)

Answer 1

\(=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}\\ =\dfrac{-63+4+37}{36}=\dfrac{-23}{36}\)

Answer 2

= -1,75 + 1/9 + 2 1/18

=5/12

Answer 3

=-1,75-(-1/9-37/18)

=-1,75-(-13/6)

=-1,75+13/6

=5/12

Answer 4

\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}=\dfrac{\left(-7\right).9+4+37.2}{36}=\dfrac{5}{12}\)

Answer 5

\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)\)

\(=\dfrac{-175}{100}+\dfrac{1}{9}+2\dfrac{1}{18}\)

\(=\dfrac{-7}{4}+\dfrac{1}{9}+\dfrac{37}{18}\)

\(=\dfrac{-63}{36}+\dfrac{4}{36}+\dfrac{74}{36}\)

\(=\dfrac{-59}{36}+\dfrac{74}{36}\)

\(=\dfrac{15}{36}\)