Question

tìm a/b

a/b+3/10=7/10

12/25-a/b=7/25

Answer 1

a: =>a/b=4/10=2/5

b: =>a/b=12/25-7/25=1/5

Answer 2

1 / 5

Answer 3

\(\dfrac{a}{b}+\dfrac{3}{10}=\dfrac{7}{10}\) 

\(\dfrac{a}{b}=\dfrac{7}{10}-\dfrac{3}{10}\) 

\(\dfrac{a}{b}=\dfrac{2}{5}\) 

 

\(\dfrac{12}{25}-\dfrac{a}{b}=\dfrac{7}{25}\)

\(\dfrac{a}{b}=\dfrac{12}{25}-\dfrac{7}{25}\)

\(\dfrac{a}{b}=\dfrac{1}{5}\)

Tick hộ mình nhé!

 

Answer 4

1 / 5 nhé