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calculati 2/3-5/6:4/9 dau coroana

Răspuns :

TheLiviuInfinite

[tex] \frac{2}{3} - \frac{5}{6} \div \frac{4}{9} = \\ \frac{2}{3} - \frac{5 \times 9}{6 \times 4} = \\ \frac{2}{3} - \frac{45}{24} = - \\ - \frac{43}{21} = - 2 \frac{1}{21} [/tex]
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2/3-5/6:4/9 =

2/3-5/6 × 9/4 =

2/3 - 45/24 =   ... aducem la acelasi numitor ... 24..

8×2/24 - 45/24 =

16/24 - 45/24 = - 29/24

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