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a)\(1,5:2,16=15:216=5:72\)
b)\(4\dfrac{2}{7}:\dfrac{3}{5}=\dfrac{30}{7}:\dfrac{3}{5}=\dfrac{30}{7}.\dfrac{5}{3}=\dfrac{50}{7}=50:7\)
c)\(\dfrac{\dfrac{2}{9}}{0,31}=\dfrac{2}{9}:\dfrac{31}{100}=\dfrac{2}{9}.\dfrac{100}{31}=\dfrac{31}{450}=31:450\)
a: \(\dfrac{3.7}{4.5}=\dfrac{37}{45}\)
b: \(=\dfrac{4}{35}\cdot\dfrac{5}{2}=\dfrac{10}{70}=\dfrac{1}{7}\)
c: \(=\dfrac{7}{3}\cdot\dfrac{4}{3}=\dfrac{28}{9}\)
d: \(=\dfrac{22}{7}:\dfrac{5}{3}=\dfrac{22}{7}\cdot\dfrac{3}{5}=\dfrac{66}{35}\)
e: \(=2:\dfrac{1}{200}=\dfrac{400}{1}\)
f: =13/5:37/10=13/5x10/37=26/37
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)\(\dfrac{3}{8}:0,54=\dfrac{3}{8}:\dfrac{27}{50}=\dfrac{25}{36}\)
a, Ta có : \(1,2=\dfrac{12}{10}=\dfrac{6}{5}\) ; \(3,36=\dfrac{84}{25}\)
=> \(1,2:3,36=\dfrac{6}{5}:\dfrac{84}{25}=\dfrac{5}{14}\)
b, Ta có : \(3\dfrac{1}{7}:2\dfrac{5}{14}=\dfrac{22}{7}:\dfrac{33}{14}=\dfrac{4}{3}\)
c,\(\dfrac{3}{8}:0,54=\dfrac{3}{8}:\dfrac{27}{50}=\dfrac{25}{36}\)
a: =7/3*5/4=35/12
b: =21/53
c:=0,4:0,3=4/3
d: =23/120
e: =3/9=1/3
f: =24/48=1/2