Question

Tính

\(3\dfrac{4}{13}.15\dfrac{3}{41}-3\dfrac{4}{13}.2\dfrac{3}{41}\)

Answer 1

\(3\dfrac{4}{11}.15\dfrac{3}{4}-3\dfrac{4}{13}.2\dfrac{3}{41}\)

\(=3\dfrac{4}{13}.\left(15\dfrac{3}{41}-2\dfrac{3}{41}\right)\)

\(=3\dfrac{4}{13}.13\)

\(=43\)

Chúc bạn học tốt!

Answer 2

\(\dfrac{43}{13}\).\(\dfrac{613}{41}\)-\(\dfrac{43}{13}\).\(\dfrac{85}{41}\)

=\(\dfrac{43}{13}\)\(\left(\dfrac{613}{41}-\dfrac{85}{41}\right)\)

=\(\dfrac{43}{13}\).\(\dfrac{528}{41}\)

=\(\dfrac{22704}{533}\)