Oblicz
[(-2):(-5)-(-0,4):(-0,12)]:[3/4*(-0,8)+(-0,12)*(-2,5)]-7/9= ?
[(-2)*(-1/5) - (-4/10)*(-100/12)] /[3/4*(-8/10)+(-12/100)*(-25/10)] - 7/9 =
= (-2/5 - 10/3) / (-6/10+6/20) - 7/9 =
= (-6/15 - 50/15) /(-12/20+6/20) - 7/9 =
= -44/15/(-6/20)-7/9 =
= -44/15*(-20/6) -7/9 =
= 176/18 - 14/18 =
= 162/18 =
= 9
Prawdopodobnie dobrze na 97 %
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[(-2)*(-1/5) - (-4/10)*(-100/12)] /[3/4*(-8/10)+(-12/100)*(-25/10)] - 7/9 =
= (-2/5 - 10/3) / (-6/10+6/20) - 7/9 =
= (-6/15 - 50/15) /(-12/20+6/20) - 7/9 =
= -44/15/(-6/20)-7/9 =
= -44/15*(-20/6) -7/9 =
= 176/18 - 14/18 =
= 162/18 =
= 9
Prawdopodobnie dobrze na 97 %