Oznaczamy, aby łatwo było zorientować się w obliczeniach:

$a = \frac{1}{5} \cdot 10 = \frac{10}{5} = 2$

$b = 2 - \frac{3}{4} = 1 \frac{4}{4} - \frac{3}{4} = 1 \frac{1}{4}$

$c = 1 \frac{1}{4} \cdot \frac{4}{5} = \frac{5}{4} \cdot \frac{4}{5} = 1$

$d = 1 + \frac{2}{3} = 1 \frac{2}{3}$

$e = \frac{1}{3} \cdot 0, 1 = \frac{1}{3} \cdot \frac{1}{10} = \frac{1}{30}$

$f = \frac{1}{30} + 2 \frac{7}{15} = \frac{1}{30} + 2 \frac{14}{30} = 2 \frac{15}{30} = 2 \frac{1}{2}$

$g = 2 \frac{1}{2} - 1, 25 = 2 \frac{2}{4} - 1 \frac{1}{4} = 1 \frac{1}{4}$

$h = 1 \frac{1}{4} : \frac{1}{2} = 1 \frac{1}{4} \cdot 2 = 2 \frac{2}{4} = 2 \frac{1}{2}$

$2 \frac{1}{2} \cdot i = \frac{1}{5} \Rightarrow i = \frac{1}{5} : 2 \frac{1}{2} = \frac{1}{5} : \frac{5}{2} = \frac{1}{5} \cdot \frac{2}{5} = \frac{2}{25}$

$2 \frac{1}{2} : j = 2 \Rightarrow j = 2 \frac{1}{2} : 2 = \frac{5}{2} \cdot \frac{1}{2} = \frac{5}{4} = 1 \frac{1}{4}$

$2 \cdot k = 1 \Rightarrow k = 1 : 2 = \frac{1}{2}$

$1 - l = \frac{1}{3} \Rightarrow l = 1 - \frac{1}{3} = \frac{2}{3}$

$\frac{1}{3} + m = 2 \frac{1}{2} \Rightarrow m = 2 \frac{1}{2} - \frac{1}{3} = 2 \frac{3}{6} - \frac{2}{6} = 2 \frac{1}{6}$

$2 \frac{1}{2} : n = 2 \frac{1}{2} \Rightarrow n = 1$

Najwygodniejszy sposób nauki z edukacyjnym Odrabiamy AI

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