Odpowiedź:
i)
9/10 : (-3/4) =
= 9/10* (- 4/3) =
= 3/5 * (-2/1) =
= - 6/5 =
= - 1 i 1/5
j)
(-1 i1/2) : (-0,06) =
= - 3/2 : ( - 6/100) =
= - 3/2 * (- 100/6) =
= - 1/1 * (- 50/2) =
= 50/2 =
= 25
k)
(-2 i 2/3) : 1,2 =
= (-8/3) : 1 i 2/10 =
= - 8/3 : 12/10 =
= - 8/3 * 10/12 =
= - 2/3 * 10/3 =
= - 20/9 =
= - 2 i 2/9
l)
2/3 : (-6) =
= 2/3 * (-1/6) =
= 1/3 * (- 1/3) =
= - 1/9
m)
(-0,45) : 1 i 4/5 =
= - 45/100 : 9/5 =
= - 45/100 * 5/9 =
= - 5/20 * 1/1 =
= - 5/20 =
= - 1/4
n)
(-2,75) : (-2,2) =1,25
lub na ułamkach zwykłych
(-2,75) : (-2,2) =
= (- 2 i 75/100) : (-2 i 2/10) =
= (-2 i 3/4 ) : (-2 i 1/5) =
= ( - 11/4) : (- 11/5) =
= (-11/4) *(-5/11) =
= (-1/4) * (-5/1) =
= 5/4 =
= 1 i 1/4
o)
(-3,5) : (-1 i 2/5) =
= ( - 3 i 5/10) : (- 7/5) =
= (- 3 i 1/2) * ( - 5/7) =
= (-7/2) * (-5/7) =
= (-1/2) * (-5/1) =
= 5/2=
= 2 i 1/2
Szczegółowe wyjaśnienie:
