Question

Calculati:
a)$\frac{40}{9} : \frac{8}{3}$
b) $- \frac{4}{9} : ( -\frac{2}{3} )$
c)$\frac{16}{21} : (- \frac{4}{7})$
d) $- \frac{16}{27} : (- \frac{2}{9} )$

25 De puncte raspunsul cel mai bun ! 

Answer 1

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