Question

thay tỉ số giữa các số hữu tỉ bằng tỉ số giữa các số nguyên :

a) 1,2 : 3,36

b) \(3\dfrac{1}{7}\) : \(2\dfrac{5}{14}\)

c) \(\dfrac{3}{8}:0,54\)

Answer 1

a) \(1,2:3,36=\dfrac{6}{5}:\dfrac{84}{25}=\dfrac{5}{14}\)

b)\(3\dfrac{1}{7}:2\dfrac{5}{14}=\dfrac{22}{7}:\dfrac{33}{14}=\dfrac{4}{3}\)

c)\(\dfrac{3}{8}:0,54=\dfrac{3}{8}:\dfrac{27}{50}=\dfrac{25}{36}\)

Answer 2

a, 1,2 :3,36= \(\dfrac{6}{5}:\dfrac{84}{25}=\dfrac{5}{14}=5:14\)

\(3\dfrac{1}{7}:2\dfrac{5}{14}=\dfrac{22}{7}:\dfrac{33}{14}=\dfrac{4}{3}=4:3\)

\(\dfrac{3}{8}:0,54=\dfrac{3}{8}:\dfrac{27}{50}=\dfrac{25}{36}=25:36\)