Question

Giúp mik với m.n

Answer 1

a) \(\dfrac{1}{5}-\dfrac{1}{2}+\left|\dfrac{-1}{4}\right|\)

\(=\dfrac{1}{5}-\dfrac{1}{2}+\dfrac{1}{4}\)

\(=\dfrac{-3}{10}+\dfrac{1}{4}\)

\(=\dfrac{-1}{20}\)

Answer 2

\(\dfrac{1}{5}-\dfrac{1}{2}+\left|-\dfrac{1}{4}\right|\)

\(=\dfrac{1}{5}-\dfrac{1}{2}+\dfrac{1}{4}\)

\(=\dfrac{4}{20}-\dfrac{10}{20}+\dfrac{5}{20}\)

\(=-\dfrac{1}{20}\)