Question

Tính\(\left(1+\frac{2}{3}-\frac{1}{4}\right).\left(\frac{4}{5}-\frac{3}{4}\right)^2\) GIÚP VỚI

Answer 1

\(\left(1+\frac{2}{3}-\frac{1}{4}\right).\left(\frac{4}{5}-\frac{3}{4}\right)^2\)

\(=\frac{17}{12}.\left(\frac{1}{20}\right)^2\)

\(=\frac{17}{12}.\frac{1}{400}\)

\(=\frac{17}{4800}\)

Answer 2

\(\left(1+\frac{2}{3}-\frac{1}{4}\right).\left(\frac{4}{5}-\frac{3}{4}\right)^2\)

=\(\left(\frac{12}{12}+\frac{8}{12}-\frac{3}{12}\right).\left(\frac{16}{20}-\frac{15}{20}\right)^2\)

=\(\frac{17}{12}.\left(\frac{1}{20}\right)^2\)

=\(\frac{17}{12}.\frac{1}{400}\)

=\(\frac{17}{4800}\)