Question

rút gọn rồi tính: 8/56 + 3/21 = ?

Answer 1

`8/56+3/21`

`=1/7+1/7`

`=2/7`

Answer 2

=1/7 + 1/7 =2/7

Answer 3

\(\dfrac{8}{56}+\dfrac{3}{21}\)
\(=\dfrac{1}{7}+\dfrac{1}{7}\)
\(=\dfrac{2}{7}\)

Answer 4

8/56+3/21

=1/7+1/7

=2/7

Answer 5

\(\dfrac{8}{56}+\dfrac{3}{21}=\dfrac{1}{7}+\dfrac{1}{7}=\dfrac{1+1}{7}=\dfrac{2}{7}\)

Answer 6

Rút gọn :

\(\dfrac{8}{56}=\dfrac{1}{7}\)

\(\dfrac{3}{21}=\dfrac{1}{7}\)

Tính :

\(\dfrac{1}{7}+\dfrac{1}{7}=\dfrac{2}{7}\)

Answer 7

\(\dfrac{8}{56}+\dfrac{3}{21}=\dfrac{1}{7}+\dfrac{1}{7}=\dfrac{1+1}{7}=\dfrac{2}{7}\)

Answer 8