Odpowiedź:
1 2/3 : 2 1/2 + 9× 1 1/6 = 5/3 × 2/5 + 9/1 × 7/6 = 2/3 + 21/2 = 4/6 + 63/6 = 67/6 =11 1/6
( 1,5)² - ( 8/5 : 8/3) = 2 1/4 - 3/5= 9/4 - 3/5 = 45/20 - 12/20 = 33/20
3 1/4 : [ (21/8 - 7/6 ) ; 5/2] = 13/4 : [( 63/24 - 28/24) : 5/2]=
13/4 × 24/35 × 2/5 = 312/350 = 156/175
Szczegółowe wyjaśnienie:
Odpowiedź:
1 i 2/3 : 2 i 1/2 + 9 * 1 i 1/6 = 5/3 : 5/2 + 9 * 7/6 = 5/3 * 2/5 + 21/2 = 2/3 + 21/2 = 4/6 + 63/6 = 67/6 = 11 i 1/6
(1 i 1/2)² - 1 i 3/5 : 2 i 2/3 = (3/2)² - 8/5 : 8/3 = 9/4 - 8/5 * 3/8 = 9/4 - 3/5 = 45/20 - 12/20 = 33/20 = 1 i 13/20
3 i 1/4 : ((2 i 5/8 - 1 i 1/6) : 2 i 1/2) = 13/4 : ((2 i 15/24 - 1 i 4/24) : 5/2) = 13/4 : (1 i 11/24 : 5/2) = 13/4 : (35/24 : 5/2) = 13/4 : (35/24 * 2/5) = 13/4 : 7/12 = 13/4 * 12/7 = 39/7 = 5 i 4/7