Odpowiedzi

2010-02-12T20:01:53+01:00
A) 1/4 - 1/8 + 5/6 = 6/24 - 3/24 + 20/24 = 23/24
b) 4/9 - 1/6 + 5/12 = 16/36 - 6/36 + 15/36 = 25/36
c) 2/7 + 1/2 - 10/28 = 8/28 + 14/28 - 10/28 = 12/28
d) 2 i 2/3 - 1 i 9/12 + 3 i 10/15= 8/3 - 21/12 + 55/15= 40/15 - 35/15 + 55/15 = 60/15 = 4
e) 5 i 1/2 - 2 i 2/3 + 3 i 3/8 = 11/2 -8/3 +27/8 = 132/24 - 64/24 + 81/24 = 149/24 = 6 i 5/24
f) 17/4 - 2 i 1/10 + 42/40 = 17/4 - 21/10 + 42/40 = 170/40 - 84/40 + 42/40 = 128/40 = 3 i 8/40 = 3 i 1/5
6 3 6