Răspunsuri

2014-10-04T10:01:38+03:00
-5/12x3/20= -5·3/12·20=1/16
am simplificat 5 cu 20 si 3 cu 12

2014-10-04T10:03:21+03:00


-5:12*3:20=

12*3=36

-5:+36:+20=(-7,2):(+20)=-0,36

Mult succes!