Question

Tính: 2 3/5 + 1 1/4 * 2 2/3

Answer 1

\(2\dfrac{3}{5}+1\dfrac{1}{4} . 2\dfrac{2}{3}=\dfrac{13}{5}+\dfrac{5}{4} . \dfrac{8}{3}=\dfrac{13}{5}+\dfrac{10}{3}=\dfrac{39}{15}+\dfrac{50}{15}=\dfrac{89}{15}\)

Answer 2

=\(\dfrac{13}{5}\)+\(\dfrac{5}{4}\)x\(\dfrac{8}{3}\)

=\(\dfrac{13}{5}\)+\(\dfrac{10}{3}\)

=\(\dfrac{39}{15}\)+\(\dfrac{50}{15}\)

=\(\dfrac{89}{15}\)