$3 \cdot 7 \frac{1}{3} + 3 \frac{1}{5} = 3^{1} \cdot \frac{22}{3 ^{1}} + 3 \frac{1}{5} = 22 + 3 \frac{1}{5} = \underline{\underline{25 \frac{1}{5}}}$

$\frac{1}{2} \cdot 7 \frac{1}{3} - 3 \frac{1}{5} = \frac{1}{2} \cdot \frac{22}{3} - 3 \frac{1}{5} = \frac{22}{6} - 3 \frac{1}{5} = 3 \frac{4}{6} - 3 \frac{1}{5} = 3 \frac{2}{3} - 3 \frac{1}{5} =$ $\frac{1}{2} \cdot 7 \frac{1}{3} - 3 \frac{1}{5} = \frac{1}{2} \cdot \frac{22}{3} - 3 \frac{1}{5} = \frac{22}{6} - 3 \frac{1}{5} = 3 \frac{4}{6} - 3 \frac{1}{5} = 3 \frac{2}{3} - 3 \frac{1}{5} =$

$= 3 \frac{10}{15} - 3 \frac{3}{15} = \underline{\underline{\frac{7}{15}}}$

$3 \frac{1}{5} \cdot (7 \frac{1}{3} + 2 \frac{1}{2}) = 3 \frac{1}{5} \cdot (7 \frac{2}{6} + 2 \frac{3}{6}) = 3 \frac{1}{5} \cdot 9 \frac{5}{6} = \frac{16 ^{8}}{5} \cdot \frac{59}{6 ^{3}} =$

$= \underline{\underline{\frac{472}{15}}}$

$(7 \frac{1}{3} - 2, 5) : 3 \frac{1}{5} = (7 \frac{1}{3} - 2 \frac{1}{2}) : \frac{16}{5} = (7 \frac{2}{6} - 2 \frac{3}{6}) \cdot \frac{5}{16} =$

$= (6 \frac{8}{6} - 2 \frac{3}{6}) \cdot \frac{5}{16} = 4 \frac{5}{6} \cdot \frac{5}{16} = \frac{29}{6} \cdot \frac{5}{16} = \frac{145}{96} = \underline{\underline{1 \frac{49}{96}}}$

Najwygodniejszy sposób nauki z edukacyjnym Odrabiamy AI

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