Odpowiedź:
( 1,5 +2/3 ) * ( 6 i 2/5 -4,9)= ( 1 i 5/10 +2/3 ) *( 6 i 2/5 -4 i 9/10)=
= (1 i 1/2+2/3 )*( 6 i 4/10- 4 i 9/10)= ( 1 i 3/6 + 4/6) *( 5 i 14/10 -4 i 9/10)=
= 1 i 7/6 * 1 i 5/10= 2 i 1/6 * 1 i 1/2= 13/6 *3/2( skracamy 6 i 3 przez 3)=
= 13/2 * 1/2= 13/4 = 3 i 1/4
Szczegółowe wyjaśnienie:
(1,5 + 2/3) * (6 i 2/5 - 4,9) = (1 i 5/10 + 2/3) * (6 i 2/5 - 4 i 9/10) = (1 i 15/30 + 20/30) * (6 i 4/10 - 4 i 9/10) = 1 i 35/30 * (5 i 14/10 - 4 i 9/10) = 1 i 35/30 * 1 i 5/10 = 65/30 * 15/10 = 13/4 = 3 i 1/4
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Odpowiedź:
( 1,5 +2/3 ) * ( 6 i 2/5 -4,9)= ( 1 i 5/10 +2/3 ) *( 6 i 2/5 -4 i 9/10)=
= (1 i 1/2+2/3 )*( 6 i 4/10- 4 i 9/10)= ( 1 i 3/6 + 4/6) *( 5 i 14/10 -4 i 9/10)=
= 1 i 7/6 * 1 i 5/10= 2 i 1/6 * 1 i 1/2= 13/6 *3/2( skracamy 6 i 3 przez 3)=
= 13/2 * 1/2= 13/4 = 3 i 1/4
Szczegółowe wyjaśnienie:
Odpowiedź:
(1,5 + 2/3) * (6 i 2/5 - 4,9) = (1 i 5/10 + 2/3) * (6 i 2/5 - 4 i 9/10) = (1 i 15/30 + 20/30) * (6 i 4/10 - 4 i 9/10) = 1 i 35/30 * (5 i 14/10 - 4 i 9/10) = 1 i 35/30 * 1 i 5/10 = 65/30 * 15/10 = 13/4 = 3 i 1/4