Question

Va rog sa ma ajutati la (a) si la (c) !! Dau coroana!!!!

Answer 1

Răspuns:

a. 10/5-1+18/9

90/45-45/45+90/45

a=135/45

c. (6/6+12/6+18/6)-8/8

36/6-8/8

144/24-24/24

c=120

Answer 2

Răspuns:a)22/90

b)6/72

Explicație pas cu pas:

a) [(13/5-3/5)-(4/6+7/6-5/6)+18/9=

=10/5-6/6-18/9=

=22/90

b) (1+4/2+9/3)-8/8=

=(1/1+4/2+9/3)-8/8=

=(1/6+4/6+9/6)-8/8=

= 14/6-8/8=

=6/72