Răspuns:
c)[0,(3)+1,(3)]:(0,5+0,4:8)
[4/9+(13-1)/9]:(0,5+0,05)
16/9:0,55
=3,(23) (daca trebuie ca rezultatul sa fie sub forma de fractie,scrie si urmatorul lucru:
=323-2/99=321/99=107/33
d)
(5/8-0,6):1/18+(0,4+3/5)*8/9
(5/8-6/10):1/18+(4/10+3/5)*8/9
(25/40-24/40)*18/1+(4/10+6/10)*8/9
1/40*18/1+10/10*8/9
9/20+8/9
81/180+160/180
241/180
