Odpowiedź:
a)
2/7 : (8/3 - 1 1/2) = 2/7 : (2 2/3 - 1 1/2) = 2/7 : (2 4/6 - 1 3/6) = 2/7 : 1 1/6 =
= 2/7 : 7/6 = 2/7 * 6/7 = 12/49
b)
(8/3 - 1 1/2) : 2/7 = (2 2/3 - 1 1/2) * 7/2 = (2 4/6 - 1 3/6) * 7/2 = 1 1/6 * 7/2 =
= 7/6 * 7/2 = 49/12 = 4 1/12
c)
9/4 : (11 - 5 7/8) = 9/4 : 5 1/8 = 9/4 : 41/8 = 9/4 * 8/41 = 18/41
d)
9/5 : (6 1/2 - 5 3/5) = 9/5 : (6,5 - 5,6) = 1,8 : 0,9 = 2
e)
14/15 : (3/8 + 1/2) = 14/15 : (3/8 + 4/8) = 14/15 : 7/8 = 14/15 * 8/7 = 16/15 =
= 1 1/15
f)
2 1/4 : (8 1/2 - 7 3/4) = 2,25 : (8,5 - 7,75) = 2,25 : 0,75 = 3
Szczegółowe wyjaśnienie:
