Question

Oblicz, pamiętając o kolejności wykonywania działań.
a) (4 3/8 - 1 2/3) : 3 3/4 =
b) 2 1/5 - 1 1/6 : 2 1/3 =
c) [(3/8 + 1/6) : 3 1/4] - (1/3) ^3^ =
Legenda
^3^ Do potęgi trzeciej

Answer 1

a) (4 3/8 - 1 2/3) : 3 3/4 = 
= ( 35/8 - 5/3) : 15/4 = 
= (105/24 - 40/24) * 4/15 = 
= 65/24 * 4/15 = 
= 13/18

b) 2 1/5 - 1 1/6 : 2 1/3 =
= 11/5 - 7/6 : 7/3 = 
= 11/5 - 7/6 * 3/7 = 
= 11/5 - 1/2 = 
= 22/10 - 5/10 = 
= 17/10 = 1 i 7/10

c) [(3/8 + 1/6) : 3 1/4] - (1/3) ^3^  =
= [(18/48 + 8/48) : 13/4] - 1/27 = 
= [26/48 * 4/13] - 1/27 = 
= 2/12 - 1/27 = 
= 54/324 - 12/324 = 
= 42/324