Odpowiedź:
Szczegółowe wyjaśnienie:
a) (2 1/6)/(1 4/9) = (13/6)/13/9) = 13/6 * 9/13 = 9/6 = 1 1/2
b) (1/2 + 1/3)/(1/2) = (3/6 + 2/6)/(1/2) = (5/6)/(1/2) = 5/6 * 2 = 10/6 = 1 2/3
c) (1 5/12)/(1/2 - 1/3) = (17/12)/(3/6 - 2/6) = (17/12)/(1/6) = 17/12 * 6 = 17/2 = 8 1/2
d) (2 - 1/3)/(2 - 1/2) = (5/3)/(3/2) = 5/3 * 2/3 = 10/9 = 1 1/9
e) (3/4 + 1/8)/(3/4 - 1/8) = (6/8 + 1/8)/(6/8 - 1/8) = (7/8)/(5/8) = 7/8 * 8/5 = 7/5
= 1 2/5
f) (1/2 - 1 2/5)/(1/2 - 1 1/5) = (1/2 - 7/5)/(1/2 - 6/5) = (5/10 - 14/10)/(5/10 - 12/10) =
= (-9/10)/(-7/10) = 9/10 * 10/7 = 9/7 = 1 2/7
g) (2 1/4 - 3 1/2)/(1/8 + 1/2) = (9/4 - 7/2)/(1/8 + 4/8) = (9/4 - 14/4)/(5/8) =
= (-5/4)/(5/8) = - 5/4 * 8/5 = - 2
h) (3 1/2 - 2 3/4)/(2 1/2 * 2/5 - 2) = (7/2 - 11/4)/(5/2 * 2/5 - 2) =
= (14/4 - 11/4)/(1 - 2) = - 3/4
