Question

4 - mấy để ra \(2\dfrac{3}{8}\)

Answer 1

help

Answer 2

\(4-x=2\dfrac{3}{8}\)

\(4-x=\dfrac{19}{8}\)

\(x=4-\dfrac{19}{8}\)

\(x=\dfrac{32}{8}-\dfrac{19}{8}\)

\(x=\dfrac{13}{8}\)

Answer 3

4-\(\dfrac{13}{8}\)=\(2\dfrac{3}{8}\)

Answer 4

\(4-x=2\dfrac{3}{8}\\ \Rightarrow4-x=\dfrac{19}{8}\\ \Rightarrow\dfrac{32}{8}-x=\dfrac{19}{8}\\ \Rightarrow x=\dfrac{32}{8}-\dfrac{19}{8}\\ \Rightarrow x=\dfrac{13}{8}\)