Răspuns:
(2/9+7/9)-3/4=9/9-3/4=6/5
a)
b)
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Răspuns:
(2/9+7/9)-3/4=9/9-3/4=6/5
Răspuns:
a)![(\frac{2}{9}+\frac{7}{9})-\frac{3}{4}=1-\frac{3}{4}=\frac{1}{4} (\frac{2}{9}+\frac{7}{9})-\frac{3}{4}=1-\frac{3}{4}=\frac{1}{4}](https://tex.z-dn.net/?f=%28%5Cfrac%7B2%7D%7B9%7D%2B%5Cfrac%7B7%7D%7B9%7D%29-%5Cfrac%7B3%7D%7B4%7D%3D1-%5Cfrac%7B3%7D%7B4%7D%3D%5Cfrac%7B1%7D%7B4%7D)
b)![(2\frac{1}{4}*\frac{3}{11}):\frac{9}{11}=(\frac{1}{2}*\frac{3}{11})*\frac{11}{9}=\frac{3}{2*11}*\frac{11}{9}=\frac{1}{6} (2\frac{1}{4}*\frac{3}{11}):\frac{9}{11}=(\frac{1}{2}*\frac{3}{11})*\frac{11}{9}=\frac{3}{2*11}*\frac{11}{9}=\frac{1}{6}](https://tex.z-dn.net/?f=%282%5Cfrac%7B1%7D%7B4%7D%2A%5Cfrac%7B3%7D%7B11%7D%29%3A%5Cfrac%7B9%7D%7B11%7D%3D%28%5Cfrac%7B1%7D%7B2%7D%2A%5Cfrac%7B3%7D%7B11%7D%29%2A%5Cfrac%7B11%7D%7B9%7D%3D%5Cfrac%7B3%7D%7B2%2A11%7D%2A%5Cfrac%7B11%7D%7B9%7D%3D%5Cfrac%7B1%7D%7B6%7D)