Oblicz :
6 i 2/3 + ( 3 i 1/3 - 1/2 ) : 2 i 5/6 - 1 i 3/4
a dwa pozostałe działania w załączniku.
dam najlepsze oczywiście ;]
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Napisz jeszcze raz ten pierwszy przykład używając nawiasów bo nie wiem czy sam nawias jest podzielony przez 2 i 5/6, albo napisz na kartce i ze skanuj jak pozostałe, to rozwiąże ci to zadanie.
a)![\frac{7,13}{2,75-1\frac{3}{5}}=\frac{7,13}{2,75-\frac{8}{5}}=\frac{7,13}{2,75-\frac{16}{10}}=\frac{7,13}{2,75-1,6}=\frac{7,13}{1,15}=6,2 \frac{7,13}{2,75-1\frac{3}{5}}=\frac{7,13}{2,75-\frac{8}{5}}=\frac{7,13}{2,75-\frac{16}{10}}=\frac{7,13}{2,75-1,6}=\frac{7,13}{1,15}=6,2](https://tex.z-dn.net/?f=%5Cfrac%7B7%2C13%7D%7B2%2C75-1%5Cfrac%7B3%7D%7B5%7D%7D%3D%5Cfrac%7B7%2C13%7D%7B2%2C75-%5Cfrac%7B8%7D%7B5%7D%7D%3D%5Cfrac%7B7%2C13%7D%7B2%2C75-%5Cfrac%7B16%7D%7B10%7D%7D%3D%5Cfrac%7B7%2C13%7D%7B2%2C75-1%2C6%7D%3D%5Cfrac%7B7%2C13%7D%7B1%2C15%7D%3D6%2C2)
b)![\frac{6,5+(3\frac{1}{3}-0,5)}{2\frac{1}{3}}=\frac{6\frac{5}{10}+(\frac{10}{3}-\frac{5}{10})}{\frac{7}{3}}=\frac{6\frac{1}{2}+(\frac{10}{3}-\frac{1}{2})}{\frac{7}{3}}=\frac{\frac{13}{2}+(\frac{20}{6}-\frac{3}{6})}{\frac{7}{3}}= \frac{6,5+(3\frac{1}{3}-0,5)}{2\frac{1}{3}}=\frac{6\frac{5}{10}+(\frac{10}{3}-\frac{5}{10})}{\frac{7}{3}}=\frac{6\frac{1}{2}+(\frac{10}{3}-\frac{1}{2})}{\frac{7}{3}}=\frac{\frac{13}{2}+(\frac{20}{6}-\frac{3}{6})}{\frac{7}{3}}=](https://tex.z-dn.net/?f=%5Cfrac%7B6%2C5%2B%283%5Cfrac%7B1%7D%7B3%7D-0%2C5%29%7D%7B2%5Cfrac%7B1%7D%7B3%7D%7D%3D%5Cfrac%7B6%5Cfrac%7B5%7D%7B10%7D%2B%28%5Cfrac%7B10%7D%7B3%7D-%5Cfrac%7B5%7D%7B10%7D%29%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D%5Cfrac%7B6%5Cfrac%7B1%7D%7B2%7D%2B%28%5Cfrac%7B10%7D%7B3%7D-%5Cfrac%7B1%7D%7B2%7D%29%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D%5Cfrac%7B%5Cfrac%7B13%7D%7B2%7D%2B%28%5Cfrac%7B20%7D%7B6%7D-%5Cfrac%7B3%7D%7B6%7D%29%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D)
![\frac{\frac{13}{2}+\frac{17}{6}}{\frac{7}{3}}=\frac{\frac{39}{6}+\frac{17}{6}}{\frac{7}{3}}=\frac{\frac{56}{6}}{\frac{7}{3}}= \frac{\frac{13}{2}+\frac{17}{6}}{\frac{7}{3}}=\frac{\frac{39}{6}+\frac{17}{6}}{\frac{7}{3}}=\frac{\frac{56}{6}}{\frac{7}{3}}=](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cfrac%7B13%7D%7B2%7D%2B%5Cfrac%7B17%7D%7B6%7D%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D%5Cfrac%7B%5Cfrac%7B39%7D%7B6%7D%2B%5Cfrac%7B17%7D%7B6%7D%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D%5Cfrac%7B%5Cfrac%7B56%7D%7B6%7D%7D%7B%5Cfrac%7B7%7D%7B3%7D%7D%3D)
![\frac{56}{6}:\frac{7}{3}=\frac{56}{6}*\frac{3}{7}=\frac{8}{2}*\frac{1}{1}=\frac{8}{2}=4 \frac{56}{6}:\frac{7}{3}=\frac{56}{6}*\frac{3}{7}=\frac{8}{2}*\frac{1}{1}=\frac{8}{2}=4](https://tex.z-dn.net/?f=%5Cfrac%7B56%7D%7B6%7D%3A%5Cfrac%7B7%7D%7B3%7D%3D%5Cfrac%7B56%7D%7B6%7D%2A%5Cfrac%7B3%7D%7B7%7D%3D%5Cfrac%7B8%7D%7B2%7D%2A%5Cfrac%7B1%7D%7B1%7D%3D%5Cfrac%7B8%7D%7B2%7D%3D4)