Bài 1 trang 74 SGK Toán 5

Viết (theo mẫu):

\( \dfrac {75}{300}\;; \;\quad \dfrac {60}{400}\;;\; \quad \dfrac {60}{500}\;; \;\quad \dfrac {96}{300}.\)

Mẫu:        \( \dfrac {75}{300} = \dfrac {25}{100} = 25\% .\)

Lời giải

\( \dfrac {60}{400} = \dfrac {15}{100} = 15\% \) ;                   \( \dfrac {60}{500} = \dfrac {12}{100} = 12\% \) ; 

\( \dfrac {96}{300} = \dfrac {32}{100} = 32\% \).


Quote Of The Day

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”