Odpowiedź:
zad 34
a)
(1/3 * 4/5)/4 = 4/15 : 4 = 4/15 * 1/4 = 4/60 = 1/15
b)
1 1/5/(4/5 : 2/3) = 1 1/5 / (4/5 * 3/2) = 1 1/5 : 12/10 = 1 1/5 : 6/5 = 6/5 : 6/5 =
= 6/5 * 5/6 = 1
c)
(1 1/2 * 2/7)/(2 1/4 * 1/3) = (3/2 * 2/7)/(9/4 * 1/3) = 6/14 : 9/12 = 3/7 : 3/4 =
= 3/7 * 4/3 = 1/7 * 4 = 4/7
d)
(2/5 : 2 1/2)/(3/7 * 1 1/6) = (2/5 : 5/2)/(3/7 * 7/6) = (2/5 * 2/5)/(1 * 1/6) =
= 4/25 : 1/6 = 4/25 * 6 = 24/25
