Aiutooooooooooooo..... Espresioni con le frazioni

[ValeSLB]

1-[(7/15 + 11/10 - 1/2 ): 20/25 - ( 15/8 +79/12 - 1/3 )x 2/15] : 22/9

2-[(35/18 + 23/6 - 4/3 ) x 12/25 - ( 27/20 + 15/8 - 8/5 ) : 39/20 ] : 26/15

3- 2/4: { 21/40 : [ 17/4 - ( 5/4 + 7/12 - 3/5 x 15/24] + 1/7} - 3/8

4- 21/16 x {10/9 : [15/14 : (27/20+ 9/5- 13/35 x7/4)+ 5/21]+7/15}-4/5



Grazie 1OOO a tutti :smurf

[tiscali]

1)

[math] [(\frac{7}{15} + \frac{11}{10} - \frac{1}{2}) : \frac{20}{25} - (\frac{15}{8} + \frac{79}{12} - \frac{1}{3}) \cdot \frac{2}{15}] : \frac{22}{9}[/math]

[math][( \frac{ 14 + 33 - 15}{30}) : \frac{20}{25} - (\frac{45 + 158 - 8}{24}) \cdot \frac{2}{15}] : \frac{22}{9} = [/math]

[math][(\frac{32}{30}) : \frac{20}{25} - (\frac{195}{24}) \cdot \frac{2}{15}] : \frac{22}{9} = [/math]

[math][\frac{\not{32}^{4}}{\not{30}^{3}} \cdot \frac{\not{25}^{1}}{\not{20}^{1}} - \frac{\not{195}^{13}}{\not{24}^{12}} \cdot \frac{\not{2}^{1}}{\not{15}^{1}}] : \frac{22}{9}[/math]

[math][\frac{4}{3} - \frac{13}{12}] : \frac{22}{9}=[/math]

[math][ \frac{16 - 13}{12} ]: ( \frac{22}{9} ) = [/math]

[math]\frac{3}{\not{12}^{4}} \cdot \frac{\not{9}^{3}}{22} = [/math]

[math]\frac{\not{45}^{9}}{\not{440}^{88}} = [/math]

Aggiunto 24 minuti più tardi:

2)[(35/18 + 23/6 - 4/3 ) x 12/25 - ( 27/20 + 15/8 - 8/5 ) : 39/20 ] : 26/15

[math][(\frac{35}{18} + \frac{23}{6} - \frac{4}{3}) \cdot \frac{12}{25} - ( \frac{27}{20} + \frac{15}{8} - \frac{8}{5}) : \frac{39}{20}] : \frac{26}{15} = [/math]

[math](\frac{35 + 69 - 24}{18}) \cdot \frac{12}{25} - (\frac{54 + 75 - 64}{40}) :\frac{39}{20}] : \frac{26}{15} = [/math]

[math][\frac{\not{80}^{16}}{\not{18}^{3}} \cdot \frac{\not{12}^{2}}{\not{25}^{5}} - \frac{\not{65}^{5}}{\not{40}^{2}} \cdot \frac{\not{20}^{1}}{\not{39}^{3}}] : \frac{26}{15} = [/math]

[math][\frac{32}{15} - \frac{5}{6}] : \frac{26}{15} = [/math]

[math]\frac{64 - 25}{30} \cdot \frac{15}{26}[/math]

[math]\frac{\not{39}^{3}}{\not{30}^{2}} \cdot \frac{\not{15}^{1}}{\not{26}^{2}} \to \frac{3}{4} = [/math]

Le altre puoi provare a farle tu :) :hi