Question

7/20×2

Answer 1

\(=\dfrac{7\times2}{20}=\dfrac{14}{20}=\dfrac{14:2}{20:2}=\dfrac{7}{10}\)

Answer 2

= 7/10

Answer 3

\(\dfrac{7}{20}\)x2= \(\dfrac{7}{10}\)

Answer 4

\(\dfrac{7}{20}\text{×}2=\dfrac{7}{10}\)

Answer 5

\(\dfrac{7}{10}\)

Answer 6

\(\dfrac{7}{20}\)x\(\dfrac{7x2}{20}\)=\(\dfrac{14}{20}=\dfrac{7}{10}\)

\(x\) là nhân nha