Question

đầy đủ 
\(\dfrac45 + \dfrac4{10}\)

Answer 1

= 8/10 + 4/10 = 12/10 = 6/5

Answer 2

8/10 + 4/10 = 12/10 =6/5

Answer 3

\(\dfrac{8}{10}+\dfrac{4}{10}=\dfrac{12}{10}=\dfrac{6}{5}\)

Answer 4

\(=\dfrac{8}{10}+\dfrac{4}{10}=\dfrac{12}{10}=\dfrac{6}{5}\)

Answer 5

QĐMS 

4/5 = 8/10

8/10 + 4/10= 12/10

6/5

Answer 6

\(\dfrac{4}{5}+\dfrac{4}{10}=\dfrac{8}{10}+\dfrac{4}{10}=\dfrac{12}{10}=\dfrac{6}{5}\)

Answer 7

6/5

Answer 8

4/5 + 4/10

= 4 x 2/5 x 2 + 4/10

= 8/10 + 4/10

= 12/10

= 6/5