Question

Efetue:

a) (2)/(8)x(16)/(18)x(9)/(10) =

b) (5)/(8 )x(18)/(25)x(5)/(8)x(2)/(3) =

c) (2)/(8)÷(5)/(8) =

Answer 1

a)2/8*16/18*9/10=0,25*16/18*9/10=4/18*9/10=(2/9)*9/10=18/9/10=2/10=0,2

b)5/8*18/25*5/8*2/3=0,625*18/25*5/8*2/3=11,25/25*5/8*2/3=0,45*5/8*2/3=2,25/8*2/3=0,28125*2/3=0,5625/3=0,1875

c)2/8/5/8=0,25/5/8=0,05/8=0,00625