a fost răspuns

a) -7/5×-25/28=
b)-8/21×(-9)=
c) -7 (3/4)×8/31=
d) -55/17×34/15×(-9/22)=
e) -4×3/16×(-2/9)=

Răspuns :

QTheGuyask

Răspuns:

Explicație pas cu pas:

a)-7/5x-25/28=5/4

b)-8/21×(-9)= -72/21=-24/7

c) -7 (3/4)×8/31= -21/4x8/31=-168/124=-84/62=-42/31

d) -55/17×34/15×(-9/22)= -11x2/3x-9/22=-2/3x-9/2=3

e) -4×3/16×(-2/9)=-4x-6/144=24/144=2/12=1/6