10.3
e) (3,6 - 1 1/4 ) * 1,4 + 13 1/5 : 3 2/3 =
f) ( 4 1/3 + 2,2) : 2,8 - 1 1/3 =
g) 7 1/2 : 1,8 + 2 2/3 * ( 0,75 - 1 1/2 ) =
h) 3,5 * 1 1/4 - ( 3,2 - 1/3) : (0,5 + 1/6 ) =
Proszę o rozpisanie, a nie gotowy wynik .
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e) (3,6 - 1 1/4 ) * 1,4 + 13 1/5 : 3 2/3 = 2,35 x 1,4 + 13,2 :3 2/3 = 3,29 + 13 1/5 x 3/11 = 3,29 + 66/5 x 11/3= 3,29 + 726/15+ 3,29 + 48,4 =51,69
f) ( 4 1/3 + 2,2) : 2,8 - 1 1/3 = (4 5/15 + 2 3/15) ; 2,8 - 1 1/3 = 6 8/15: 2,8 - 1 1/3= 98/15 x 10/28 - 1 1/3 = 2 1/3 - 1 1/3 = 1
g) 7 1/2 : 1,8 + 2 2/3 * ( 0,75 - 1 1/2 ) = tutaj na pewno dobrze wpisałaś działanie w nawiasie? wyjdzie wynik ujemny
h) 3,5 * 1 1/4 - ( 3,2 - 1/3) : (0,5 + 1/6 ) = 7/2 x 5/4 - (3 6/30 - 10/30) ; (3/6 +1/6) = 2 26/30 : 4/6= 2 13/15 x 6/4 = 43/15 x 6/4 = 3/1 x 1/2 = 3/2 = 1 1/2
e) (3 6/10-1 1/4)*1 4/10+13 1/5:3 2/3= (3 24/40- 1 10/40)*1 4/10+66/5:11/3= 2 14/40*1 4/10+ 66/5*3/11=94/40*14/10+18/5=329/100+18/5=329/100 +360/100=689/100=6 89/100
f) (4 1/3+2 2/10) : 2 8/10-1 1/3=(4 10/30 + 2 6/30) : 28/10 - 1 1/3= 6 16/30 * 10/28 - 4/3 = 196/30 *10/28 - 4/3 = 7/3 - 4/3 = 3/3=1
g)15/2 :1 8/10 + 8/3 * (3/4 - 3/2) = 15/2 : 18/10 +8/3 * (3/4 -6/4) = 15/2 * 10/18 + 8/3 * (-3/4)=
25/6 + (-2/1)= 25/6 - 12/6= 9/6= 3/2=1 1/2
h) 3 1/2 * 5/4 - (3 1/5 -1/3) : (1/2 +1/6)= 7/2 *5/4 - (16/5 - 1/3) : (3/6 +1/6)= 7/2 * 5/4 - (48/15 - 5/15) : 4/6=7/2 *5/4 - 43/15 * 6/4 = 35/8 - 86/20= 700/160 - 258/160= 442/160= 2 122/160=2 61/80