Question

\(\dfrac{7}{38}\)-\(\dfrac{8}{-9}\)+\(\dfrac{2}{-9}\) giúp mình vói mn ơi

Answer 1

\(\dfrac{7}{38}-\dfrac{8}{-9}+\dfrac{2}{-9}\)

\(=\dfrac{7}{38}-\dfrac{-8}{9}+\dfrac{-2}{9}\)

\(=\dfrac{7}{38}+\dfrac{8}{9}-\dfrac{2}{9}\)

\(=\dfrac{367}{342}-\dfrac{2}{9}\)

\(=\dfrac{97}{114}\)

Answer 2

Bai de ko bt ngu vai

 

 

Answer 3

\(\dfrac{7}{38}\) - \(\dfrac{8}{-9}\) + \(\dfrac{2}{-9}\)

= \(\dfrac{7}{38}\) + \(\dfrac{8}{9}\) - \(\dfrac{2}{9}\)

= \(\dfrac{7}{38}\) + \(\dfrac{6}{9}\)

= \(\dfrac{63}{342}\) + \(\dfrac{228}{342}\)

= \(\dfrac{291}{342}\)

= \(\dfrac{97}{114}\)

Answer 4

Ngu

Answer 5

10 phút trước  

738387​ - 8−9−98​ + 2−9−92​

= 738387​ + 8998​ - 2992​

= 738387​ + 6996​

= 6334234263​ + 228342342228​

= 291342342291​

= 9711411497​