Question

Answer 1

bài 1 : \(\dfrac{3}{10}\)

bài 2 : \(a,\dfrac{7}{9};\dfrac{99}{100};\dfrac{3}{7}\\ b,\dfrac{25}{25};\dfrac{10}{10}\\ c,\dfrac{3}{2};\dfrac{9}{7}\)

bài 3 :\(4:9=\dfrac{4}{9};12:7=\dfrac{12}{7}:25:100=\dfrac{25}{100}=\dfrac{1}{4};105:307=\dfrac{105}{307}\)

Answer 2

Bài 1: \(\dfrac{3}{10}\)

Bài 2:
a) \(\dfrac{7}{9};\dfrac{99}{100};\dfrac{3}{7}\)

b) \(\dfrac{25}{25};\dfrac{10}{10}\)

c) \(\dfrac{3}{2};\dfrac{9}{7}\)

Bài 3: 
\(4:9=\dfrac{4}{9}\)             \(12:7=\dfrac{12}{7}\)          \(25:100=\dfrac{25}{100}\)          \(105:307=\dfrac{105}{307}\)

Bài 4: \(\dfrac{25}{1}\)

Bài 5:
\(1=\dfrac{14}{14};0=\dfrac{0}{4};1=\dfrac{22}{22}\)

Answer 3

bài 4 : \(\dfrac{25}{1}\)

bài 5 : \(1=\dfrac{14}{14};0=\dfrac{0}{4};1=\dfrac{22}{22}\)

Answer 4

bài 1 : a,7/9;99/100;3/7
b,25/25;10/10
c,3/2;9/7

bài 3 :