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Calculati :
a) 3/5•10/9
b) 1/2•4/5•15/8
c) 26/15•10/39
d) 4/9•6/5•15/28
Imi trebuie urgent!!!
Va rog!


Răspuns :

a)2/3
b)3/4
c)4/9
d)6/21

a)3*10/5*9=30/45=6/9=2/3 b)1/2*4/5*15/8=1*4*15/2*5*8=60/80=3/4 c) 26/15*10/39=26*10/15*39=260/585=52/117 d)4/9*6/5*15/28=4*6*15/9*5*28= 360/1260=18/63=2/7