oblicz :
A) 2/3 + 1/5 + (3 2/17 – 4 6/13 ) * (0,75 – 3/4) =
2/5 -1/2
wynik -8 2/3
(2/3 +1/5)/(2/5 -1/2) + ( 53/17 - 58/13 ) * (3/4 -3/4) =
= (10/15 + 3/15)/ (4/10 - 5/10) + (53/17 -58/13 ) * 0 =
∧
I
= (13/15) / (-1/10) + 0 = (nie wyliczam ostaniego nawiasu, bo i tak mnozymy
go * 0 , co daje nam 0 )
= 13/15 : (-1/10) =
= 13/15 * (-10) =
= -130 /15 =
= - 8 10/15 =
= -8 2/3
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(2/3 +1/5)/(2/5 -1/2) + ( 53/17 - 58/13 ) * (3/4 -3/4) =
= (10/15 + 3/15)/ (4/10 - 5/10) + (53/17 -58/13 ) * 0 =
∧
I
= (13/15) / (-1/10) + 0 = (nie wyliczam ostaniego nawiasu, bo i tak mnozymy
go * 0 , co daje nam 0 )
= 13/15 : (-1/10) =
= 13/15 * (-10) =
= -130 /15 =
= - 8 10/15 =
= -8 2/3