Question

1.tìm a/b

a, a/b + 1/5 x 2/5 =1

b, a/b - 1/3 : 2/5 = 1

giúp em với em đang cần gấp ạ

 

Answer 1

a: =>a/b+2/25=1

=>a/b=23/24

b: =>a/b-5/6=1

=>a/b=11/6

Answer 2

a, \(\dfrac{a}{b}+\dfrac{2}{25}=1\Leftrightarrow\dfrac{a}{b}=1-\dfrac{2}{25}=\dfrac{23}{25}\)

b, \(\dfrac{a}{b}-\dfrac{5}{6}=1\Leftrightarrow\dfrac{a}{b}=1+\dfrac{5}{6}=\dfrac{11}{6}\)