Răspuns:
Explicație pas cu pas:
a)10/21
b)12/35
c)27/32
d) -4/15
e) -21/10
f) 8/3(-2/9)=-16/27
g) 8/15
i) 8/21
A)2/5x5/3=2x5/7x3=10/21
B)4/3x3/7=4x1/7=4/7
C)9/4x3/8=9x3/4x8=27/32
D)1/5x(-4/3)=-1/5x4/3=-4/15
E)(-7/5)x3/2=-21/10
F)8/3x(-2/9)= -16/27
G)(-2/3)x(-4/5)=2x4/3x5=8/15
I)(-4/3)x(-2/7)=4x2/3x7=8/21
