Question

Answer 1

Giải chị tiết nha

Answer 2

đi đi mag

Answer 3

Ai giải nhanh nhất mà đúng thì tick cho

Answer 4

19/20

16/3

8/2=4

21/8

Answer 5

a) 5/20+ 14/20 = 19/20

b) 18/3 - 2/3 = 16/3

c) 24/6 = 4

d) 21/8

Answer 6

\(\dfrac{1}{4}+\dfrac{7}{10}=\dfrac{10}{40}+\dfrac{28}{40}=\dfrac{38}{40}=\dfrac{19}{20}\)

\(\dfrac{6}{1}-\dfrac{2}{3}=\dfrac{18}{3}-\dfrac{2}{3}=\dfrac{16}{3}\)

\(\dfrac{8}{3}\times\dfrac{3}{2}=\dfrac{24}{6}=4\)

\(\dfrac{3}{4}:\dfrac{2}{7}=\dfrac{3}{4}\times\dfrac{7}{2}=\dfrac{21}{8}\)

Answer 7

\(\dfrac{1}{4}+\dfrac{7}{10}=\dfrac{10}{40}+\dfrac{28}{40}=\dfrac{38}{40}=\dfrac{7}{10}\)

\(6-\dfrac{2}{3}=\dfrac{6}{1}-\dfrac{2}{3}=\dfrac{18}{3}-\dfrac{2}{3}=\dfrac{16}{3}\)

\(\dfrac{8}{3}x\dfrac{3}{2}=\dfrac{8}{2}=4\)

\(\dfrac{3}{4}:\dfrac{2}{7}=\dfrac{3}{4}x\dfrac{7}{2}=\dfrac{21}{8}\)