Odpowiedzi

2010-03-15T21:04:19+01:00
-1 1/3

-2 2/5

-3/14

-9

-5

3

-13
2010-03-15T21:06:29+01:00
-2 x 2/3= -2/1 x 2/3= -4/3= -1 1/3
3/5 x (-4) = 3/5 x (-4/1)= - 12/5= -2 2/5
-³/₇ : 7= -3/7x 1/7= - 3/49
(-2+5) × (-3)= 3 x (-3)= -9
(4 - (-6)) : (-2)= 10 : (-2)= -5
(-13 - 8) : (-3 + 10)= -21: 7= -3
(12 - 18) - (17 - (-3)) : 10 - 15 = 6-20:10-15= 6-2-15=-11