Question

(12 5/12+1 2/3-3 5/6+2 3/4):(2 1/2 inmultit cu 2/5-7/9) care este rezultatul ?Scrieti si rezolvarea

Answer 1

(144+5/12 + 5/3- 23/6+ 11/4): (5/2·2/5-7/9) = (149/12+20/12-46/12+33/12): (1-7/9) =149-20+33/12:(9/9-7/9)=159/12:2/9=159/12·9/2=159·3/8=477/8