\(=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}\\ =\dfrac{-63+4+37}{36}=\dfrac{-23}{36}\)
=-1,75-(-1/9-37/18)
=-1,75-(-13/6)
=-1,75+13/6
=5/12
\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}=\dfrac{\left(-7\right).9+4+37.2}{36}=\dfrac{5}{12}\)
\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)\)
\(=\dfrac{-175}{100}+\dfrac{1}{9}+2\dfrac{1}{18}\)
\(=\dfrac{-7}{4}+\dfrac{1}{9}+\dfrac{37}{18}\)
\(=\dfrac{-63}{36}+\dfrac{4}{36}+\dfrac{74}{36}\)
\(=\dfrac{-59}{36}+\dfrac{74}{36}\)
\(=\dfrac{15}{36}\)
