Rozwiązane

-3 : 9/10 + (-1/5) : 2/3=
-0,8 : 0,4 + 2/3 x (-1 3/4)=

Odpowiedź :

Magdaviz

Odpowiedź:

[tex]-3:\frac{9}{10}+(-\frac{1}{5}):\frac{2}{3}=-\not3^1\cdot\frac{10}{\not9_{3}}-\frac{1}{5}\cdot\frac{3}{2}=-\frac{10}{3}-\frac{3}{10}=-\frac{100}{30}-\frac{9}{30}=-\frac{109}{30}=-3\frac{19}{30}\\\\\\-0,8:0,4+\frac{2}{3}\cdot(-1\frac{3}{4})=-2-\frac{\not2^1}{3}\cdot\frac{7}{\not4_{2}}=-2-\frac{7}{6}=-2-1\frac{1}{6}=-3\frac{1}{6}[/tex]

Fiedorczukmagdalena8viz

Odpowiedź:

-3:9/10+(-1/5):2/3=-3*10/9+(-1/5)×3/2=-10/3+(-3/10)=-100/30-9/30=-103/30

-0,8:0,4+2/3*(-1 3/4)= -8/10×10/4+2/3*(-7/4)=-2+(-7/6)=-3 1/6

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