Question

Punctele c si d va rog!​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Explicație pas cu pas:

/=> linia fracționara

*_un numar=> amplificat/simplificat

C.

-11/101+(-37/110)+(+112/101)+(-346/220)=

-11/101+112/101+[(-37/110)*2]+(-346/220)

(101/101) 1+(-74/220)+(-346/220)=

1+(-420/220)=

1+(-1 200/220)=

-200/220*10=

-20/22*2=

-10/11

D.

=[(-24/35)+(-1 3/14)]+[-1+(-16/15)+189/45]

=[(-24/35)*2+(-1 3/14)*5]+[-1+(-16/15)*3+189/45]=

=[(-48/70)+(-1 15/70)+[-1+(-48/45)+189/45]=

=(-2 63/70)+(-1+141/45)=

=(-2 63/70)+(-1+3 6/45)=

=(-2 63/70)*7+(2 6/45)*3=

=(-2 9/10)*15+(2 2/15)*10=

=(-2 135/150)+(2 20/150)=

=155/150*5=

=11/10=

=1,1