Espressioni (96904)
[-9/16+(3/11+5/2-1):(-13/11)+15/8]*
(1/3+2/9+1/27)=
{[(5-2/3+8/5)+(1/2+3/4-7/5):
(-2/5+3/10)]-23/30}-22/3=
(1/3+2/9+1/27)=
{[(5-2/3+8/5)+(1/2+3/4-7/5):
(-2/5+3/10)]-23/30}-22/3=
Risposte
[-9/16+(3/11+5/2-1): (-13/11)+15/8]*(1/3+2/9+1/27)=
= [-9/16+39/22 : 7/88] * 16/27=
= (301/176)x (88/7) * (16/27)=
=43/2* 16/27= 344/27
= [-9/16+39/22 : 7/88] * 16/27=
= (301/176)x (88/7) * (16/27)=
=43/2* 16/27= 344/27
Attenzione! Nel secondo passaggio hai commesso un errore. Devi prima eseguire la divisione (39/22) : (-13/11) e poi eseguire le addizioni algebriche:
[math][-\frac{9} {16} + \frac{39} {22} : (-\frac{13} {11}) + \frac{15} {8}] * \frac{16} {27} = \\
= [-\frac{9} {16} + \frac{\no{39}^{3}} {\no{22}^2} * (-\frac{\no{11}^1} {\no{13}^1}) + \frac{15} {8}] * \frac{16} {27} = \\
= [-\frac{9} {16} - \frac{3} {2} + \frac{15} {8}] * \frac{16} {27} = \\
= - \frac{\no3^1} {\no{16}^1} * \frac{\no{16}^1} {\no{27}^9} = - \frac{1} {9}[/math]
= [-\frac{9} {16} + \frac{\no{39}^{3}} {\no{22}^2} * (-\frac{\no{11}^1} {\no{13}^1}) + \frac{15} {8}] * \frac{16} {27} = \\
= [-\frac{9} {16} - \frac{3} {2} + \frac{15} {8}] * \frac{16} {27} = \\
= - \frac{\no3^1} {\no{16}^1} * \frac{\no{16}^1} {\no{27}^9} = - \frac{1} {9}[/math]