Question

7/9 * 3/35 =   

9/22 * 55 =

11/17: 33/34

* là nhân nhé các bạn                                                                

Answer 1

\(\dfrac{7}{9}\cdot\dfrac{3}{35}=\dfrac{7}{3\cdot3}\cdot\dfrac{3}{7\cdot5}=\dfrac{1}{15}\)

\(\dfrac{9}{22}\cdot55=\dfrac{9}{11\cdot2}\cdot11\cdot5=\dfrac{45}{2}\)

\(\dfrac{11}{17}:\dfrac{33}{34}=\dfrac{11}{17}\cdot\dfrac{34}{33}=\dfrac{11\cdot17\cdot2}{17\cdot11\cdot3}=\dfrac{2}{3}\)

Answer 2

7/9 x 3/35 = 1/15

9/22 x 55 = 45/2

11/17 : 33/34 = 2/3

Answer 3

1/15     ;      45/2       ;      2/3

Answer 4

7/9 * 3/35 = 7/15 .

9/22 * 55 = 45/2 .

11/17: 33/34 = 2/3 .

Answer 5

7/9 * 3/35 = 7/15 .

9/22 * 55 = 45/2 .

11/17: 33/34 = 2/3 .

Answer 6

7/9 x 3/35 = 1/15

9/22 x 55 =45/2

11/17 : 33/24 = 11/17 x 24/33 =2/3