Question

Ajutațimă vă rog, frumos!!!
100 de puncte

Answer 1

$\it a)\ \ \Big( \dfrac{5}{6}+\dfrac{^{2)}2}{\ 3}\Big)\cdot\dfrac{8}{9}=\dfrac{\not9}{6}\cdot\dfrac{8}{\not9}=\dfrac{\ \ 8^{(2}}{6}=\dfrac{4}{3}\\ \\ \\ b)\ \ \dfrac{^{3)}2}{\ 5}+\dfrac{3}{15}=\dfrac{\ \ 9^{(3}}{15}=\dfrac{3}{5};\ \ \dfrac{\not3}{10}\cdot\dfrac{5}{\not3}=\dfrac{\ 5^{(5}}{10}=\dfrac{1}{5}$

$\it c)\ \ \dfrac{^{4)}1}{\ 3}+\dfrac{^{3)}1}{\ 4}=\dfrac{7}{12};\ \ \ ^{6)}2-\dfrac{5}{6}=\dfrac{7}{6};\ \ \ \dfrac{\not7}{12}\cdot\dfrac{6}{\not7}=\dfrac{\ 6^{(2}}{12}=\dfrac{1}{2}$