Question

Tính:

a) \(\dfrac{12}{17}:6\);                        \(16:\dfrac{8}{11}\);                           \(9:\dfrac{3}{5}\times\dfrac{4}{15}\)

b) \(72:45\)                        \(281,6:8\)                         \(300,72:53,7\)

    \(15:50\)                        \(912,8:28\)                        \(0,162:0,36\)

Answer 1

a, 1. \(\dfrac{2}{17}\)

2. \(22\)

3. 4

b,

1. \(\dfrac{8}{5}\)

2. \(\dfrac{176}{5}\)

3. \(\dfrac{28}{5}\)

4. \(\dfrac{3}{10}\)

5. \(\dfrac{163}{5}\)

6. \(\dfrac{9}{20}\)

Answer 2

a) \(\dfrac{12}{17}:6=\dfrac{12}{17}\cdot\dfrac{1}{6}=\dfrac{2}{17}\)

Answer 3

a) \(16:\dfrac{8}{11}=16\cdot\dfrac{11}{8}=22\)

Answer 4

a) \(9:\dfrac{3}{5}\cdot\dfrac{4}{15}=9\cdot\dfrac{5}{3}\cdot\dfrac{4}{15}=4\)

Answer 5

b) 72:45=1,8

Answer 6

b) 281,6:8=35,2

Answer 7

c) 300,72:53.7=5,6

Answer 8

b) 15:50=0,3

Answer 9

b) 912,8:28=32,6

Answer 10

b) 0,162:0,36=0,45