1. 1/4 *(-1/5) 2. (-3/5)*(-5/11) 3. (-4/9)*3/14 4. (-2/5):5/8 5.8/9:(-10/21) 6. (-5/12):(-25/36) błagam pomocy! dla mnie ułamki to inny świat
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1. 1/4*(-1/5)= - 1/20
2. (-3/5)*(-5/11)= 3/11
3. (-4/9)*3/14= - 4/42= -2/21
4. (-2/5):5/8= - 16/25
5. 8/9:(-10/21)= - 28/15= - 1 13/15
6. (-5/12):(-25/36)= 3/5
1. 1/4 *( - 1/5) = - 1 / 20
2. (-3/5) * ( - 5/11) = 15/55 = 3/11 - i - dają nam +
3. (-4/9) * 3/14 = - 2/3 * 1/7 = - 2 / 21
4. (- 2/5) : 5/8 = (- 2/5) * 8/5 = - 16/25 odwrotność dzielenia to mnożenie
5.8/9 : ( - 10 /21) = 8/9 * (-21/10) = 4/3 * -7/5 = - 28/15 = - 1 13/15
6. (-5/12) : (-25/36) = (-5/12) * (-36/25) = (-1/1) * (-3/5) = -1 * (-3/5) = 3/5