Liczby wymierne mnożenie i dzielenie ;) pomocy ! /-kreska ułamkowa (-3,6)×4/9= (-2,1)×(-4 2/7)= -⅞:(-5,6)= 9/10:(-3/4)= (-1½):(-0,06)= (-2⅔):1,2= ⅔:(-6)= (-0,45):1⅘= (-2,75):(-2,2)= (-3,5):(-1⅖)=

Liczby wymierne mnożenie i dzielenie ;) pomocy ! /-kreska ułamkowa (-3,6)×4/9= (-2,1)×(-4 2/7)= -⅞:(-5,6)= 9/10:(-3/4)= (-1½):(-0,06)= (-2⅔):1,2= ⅔:(-6)= (-0,45):1⅘= (-2,75):(-2,2)= (-3,5):(-1⅖)=
Odpowiedź

(-3,6)×4/9= = -36/10 × 4/9 = -4/10 × 4 = -8/10 = -0,8 (-2,1)×(-4 2/7)= = -21/10 × (-30/7) = -3/10 × (-30) = -3 × (-3) = 9 -⅞:(-5,6)= = -7/8 ÷ (-56/10) = -7/8 × (-10/56) = -1 × (-10) = 10 9/10:(-3/4)= 9/10 × (-4/3) = 3/10 × (-4) = -12/10 = -1,2 (-1½):(-0,06)= -3/2 ÷ (-6/100) = -3/2 × (-100/6) = -1/2 × (-50) = 25 (-2⅔):1,2= -8/3 ÷ 12/10 = -8/3 × 10/12 = -2/3 × 10/3 = -20/9 ⅔:(-6)= = 2/3 × (-1/6) = -1/9 (-0,45):1⅘= = -45/100 ÷ 9/5 = -45/100 × 5/9 = -5/100 × 5 = -25/100 = -0,25 (-2,75):(-2,2)= -275/100 ÷ (-22/10) = -275/100 × (-10/22) = 275/220 = 5/4 = 1,25 (-3,5):(-1⅖)= = -35/10 ÷ (-7/5) = -35/10 × (-5/7) = 5/2 = 2,5

-1.6 9 0.49 -1.2 25 -2 2/9 -1/9 -0.25 1.25 2.5

* -16/10 * 9 *5/32 *-6/5 *25 *-20/9 *-1/9 *-1/5 *55/44 *5/2

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