Ответ:
\((2.7-0.8)\cdot2\dfrac13=1.9\cdot\dfrac73=\dfrac{133}{30}\).
\((5.2-1.4):\dfrac3{70}=3.8\cdot\dfrac{70}{3}=\dfrac{266}{3}\).
\(\left(\dfrac{133}{30}:\dfrac{266}{3}+0.125\right):2.5+0.43=\left(\dfrac1{20}+\dfrac18\right):\dfrac52+\dfrac{43}{100}=\dfrac7{40}\cdot\dfrac25+\dfrac{43}{100}=\dfrac{19}{40}\).
Ответ: \(\dfrac{19}{40}\).
