СРОЧНО!!!РЕШИТЕ ПРИМЕР!!!34 БАЛЛА

Question

СРОЧНО!!!РЕШИТЕ ПРИМЕР!!!34 БАЛЛА

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Comments

1130

Answer 1

(2 13/48+2 5/12):(-3 3/4)+ 39/4:(-13)=(2 13/48+2 20/48):(-15/4)-3/4=
(4 33/48):(-15/4)-3/4=225/48:(-15/4)-3/4=-15/12-3/4= -15/12 -9/12=-24/12= -2

(1 2/3-3 3/5):(-2 35/45+4 3/45)*(-2,6)=
(1 10/15-3 9/15):(-125/45+183/45)*(-2,6)=(25/15-54/15):58/45*(-2,6)=
(-29/15):58/45*(-2,6)=-3/2*-2,6=-1,5*-2,6= 3,9

Answer 2

(2 13/48 - (-2 5/12) ) : (-3 3/4) + 9 3/4 : (-13) = -2
1) 2 13/48 -(-2 5/12)= 109/48 + 29/12 = 109/48 + 116/48 = 225/48 = 75/16
2) 75/16 : (-3 3/4) = 75/16 * (-4/15) =  -5/4
3) 9 3/4 : (-13) = 39/4 * (-1/13) = -3/4
4) -5/4 + (-3/4) = -5/4 - 3/4 = -8/4 = -2

(1 2/3 -3,6) : (-2 7/9 + 4 1/15) * (-2,6) = 3,9
1) 1 2/3 - 3 6/10 = 5/3 - 36/10 = 50/30 - 108/30 = -58/30 = -29/15
2) -2 7/9 + 4 1/15 = -25/9 + 61/15 = -125/45 + 183/45 = 58/45
3) -29/15 : (58/45) = -29/15 * (45/58) = -3/2
4) -3/2 * (-2,6) = -3/2 * (-26/10) = -3/1 * (-13/10) = 39/10 = 3,9