Estefanik1990
Rozwiązane

oblicz. 1 2/3 + 3/4
1 3/5 - 3/10
1 2/7×3 1/3
1 2/3÷ 5/12​



Odpowiedź :

AstraySpirit2308

Obliczenia

[tex]1\frac{2}{3}+\frac{3}{4}=1\frac{8}{12}+\frac{9}{12}=1\frac{17}{12}=2\frac{5}{12}\\\\1\frac{3}{5}-\frac{3}{10}=1\frac{6}{10}-\frac{3}{10}=1\frac{3}{10}\\\\1\frac{2}{7}\cdot3\frac{1}{3}=\frac{\not9^3}{7}\cdot\frac{10}{\not3_1}=\frac{30}{7}=4\frac{2}{7}\\\\1\frac{2}{3}:\frac{5}{12}=\frac{\not5^1}{\not3_1}\cdot\frac{\not12^4}{\not5_1}=4[/tex]

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