Question

315 : 2,5 

22,95 : 5,4 

( lời giải chi tiết )

Answer 1

126

4.25

Answer 2

126

4,25

Answer 3

315 : 5/2 = 315 x 2/5 = 126

22.95 : 27/5 = 22.95 x 5/27 = 4.25

Answer 4

315 : 2,5 = 315 : \(\dfrac{5}{2}\) = 315 . \(\dfrac{2}{5}\) = 126

22,95 : 5,4 = \(\dfrac{459}{20}\) : \(\dfrac{27}{5}\) = \(\dfrac{459}{20}\) . \(\dfrac{5}{27}\) = \(\dfrac{2295}{540}\) = \(\dfrac{17}{4}\)