Question

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Answer 1

2,66:1,4+27,09-24,5*1,02=4
1)2,66:1,4=1,9
2)24,5*1,02=24,99
3)1,9+27,09=28,99
4)28,99-24,99=4

Answer 2

Пошаговое объяснение:

$\big(9 \tfrac{3}{4} - 10 : 1 \tfrac{2}{3} \big) \cdot \tfrac{2}{9} + \tfrac{1}{3} = \\ = \big( \frac{9{\cdot}4 + 3}{4} - 10 : \frac{3 + 2}{3} \big) \cdot \frac{2}{9} + \frac{1}{3} = \\ = \big( \frac{39}{4} - 10 : \frac{5}{3} \big) \cdot \frac{2}{9} + \frac{1}{3} = \\ = \big( \frac{39}{4} - 2 \cdot\cancel{5 \: }\cdot\frac{3}{\cancel{5 \: }} \big) \cdot \frac{2}{9} + \frac{1}{3} = \\ = \big( \frac{39}{4} - 6 \big) \cdot \frac{2}{9} + \frac{1}{3} = \\ = \big( \frac{39}{4} - \frac{6 \cdot4}{4} \big) \cdot \frac{2}{9} + \frac{1}{3} = \\ = \frac{39 - 24}{4} \cdot \frac{2}{9} + \frac{1}{3} = \frac{15}{4}{ \cdot }\frac{2}{9} + \frac{1}{3} = \\ = \frac{5 {\cdot} \cancel3}{2{\cdot} \cancel{2}}{ \cdot }\frac{ \cancel2}{3{\cdot} \cancel3} + \frac{1}{3} = \frac{5}{2 \cdot3} + \frac{1}{3} = \\ = \frac{5}{6} + \frac{2}{6} = \frac{7}{6} = \large{1 \tfrac{1}{6} }$

2) см. на приложенном рисунке