Răspunsuri

2014-10-16T01:05:48+03:00
A)   =40/9·3/8=120/72 se simplifica ...=60/36=30/18=10/6=5/3
b)  =(-4/9)·-(3/2)=12/18 se simplifica...=6/9=2/3
c)     =16/21·(-7/4)=-112/84 se simplifica...=-56/42=-28/21
d)    =(-16/27)·(-9/2)=144/54se simplifica....=72/27=24/9=8/3