Odpowiedź:
a)
[1,2*(-3 3/4)+1/2+(-0,5)]:[3 3/4*(-1+2/7)-1]=
[12/10*(-15/4+1/2-1/2)]:[15/4*(-5/7)-1]=
[6/5*(-15/4)]:[-75/28-1]=
-90/20:[-2 19/28-1]=
-9/2:[-3 19/28]=
-9/2:[-103/28]=
-9/2*[-28/103]=252/206=1 46/206=1 23/103
b)
1 7/10*45-3/4*26=17/10*45-78/4=765/10-39/2=
765/10-195/10=570/10=57
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Odpowiedź:
a)
[1,2*(-3 3/4)+1/2+(-0,5)]:[3 3/4*(-1+2/7)-1]=
[12/10*(-15/4+1/2-1/2)]:[15/4*(-5/7)-1]=
[6/5*(-15/4)]:[-75/28-1]=
-90/20:[-2 19/28-1]=
-9/2:[-3 19/28]=
-9/2:[-103/28]=
-9/2*[-28/103]=252/206=1 46/206=1 23/103
b)
1 7/10*45-3/4*26=17/10*45-78/4=765/10-39/2=
765/10-195/10=570/10=57
Szczegółowe wyjaśnienie: