Question

Oblicz.Pamiętaj o kolejności wykonywania działań
a) (2 2/3 * 7/8 - 1 1/2) : 4/9 =
b) 5 1/6 : [12 * (1 5/6 + 3/4 =
Pls to na jutro XD

Answer 1

A)(8/3 * 7/8 - 9/6) * 9/4 = (14/6 - 9/6) * 9/4 = 15/8 = 1 7/8
b)5 1/6 : [12 * (1 5/6 + 3/4)] = 31/6 : (12 * 11/6 + 12 * 3/4) = 6/31 * (22 +9) = 6/31 * 31 = 6
Liczę na naj :D

Answer 2

A) 
(2 i 2/3 * 7/8 - 1 i 1/2) : 4/9 = 
= (8/3 * 7/8 - 3/2) : 4/9 = 
= ( 56/24 - 3/2) : 4/9 = 
= ( 56/24 - 36/24) : 4/9 = 
= 20/24 : 4/9 = 
= 5/6 * 9/4 = 45/24 = 1 i 21/24 = 1 i 7/8 

b)
5 i 1/6 : [12 * (1 i 5/6 +3/4) ] = 
= 31/6 : [ 12 * (11/6 + 3/4) ] = 
= 31/6 : [ 12 * ( 22/12 + 9/12) ] = 
= 31/6 : ( 12 * 31/12 ) =
= 31/6 : 31 = 
= 31/6 * 1/31 = 31/186 = 1/6