Odpowiedź:
Szczegółowe wyjaśnienie:
a)
(17/40 - 0,2)/(1 3/5) = (17/40 - 2/10)/(8/5) = (17/40 - 8/40)/(8/5) =
(9/40)/(8/5) = 9/40 * 5/8 =(9*5)/(40*8) = 9/64
b)
(3 3/5 - 2)*5/(0,04) = (1 3/5)*5/(4/100) = (8/5)*5/(4/100) = 8/(4/100) =
8 * 100/4 = 200
c)
(4 3/8)/(1 5/8-0,75) = (35/8)/(13/8 - 75/100) = (35/8)/(13/8 - 3/4) =
(35/8)/(13/8 - 6/8) = (35/8)/(7/8) = 35/8 * 8/7 = 5
