Câu hỏi của Nguyễn Hà Phương

Question

11/3-2/3(2 2/5x1/4+0,2)

các bạn giúp mik với

Nguyễn Gia Khánh · Accepted Answer

$\dfrac{11}{3}-\dfrac{2}{3}\times\left(2\dfrac{2}{5}+\dfrac{1}{4}+0,2\right)$

$=\dfrac{9}{3}\times\left(\dfrac{12}{5}+\dfrac{1}{4}+\dfrac{1}{5}\right)$

$=3\times\left(\dfrac{13}{5}+\dfrac{1}{4}\right)$

$=3\times\dfrac{57}{20}$

$=\dfrac{171}{20}$Câu trả lời:   $\dfrac{11}{3}-\dfrac{2}{3}\times\left(2\dfrac{2}{5}+\dfrac{1}{4}+0,2\right)$

$=\dfrac{9}{3}\times\left(\dfrac{12}{5}+\dfrac{1}{4}+\dfrac{1}{5}\right)$

$=3\times\left(\dfrac{13}{5}+\dfrac{1}{4}\right)$

$=3\times\dfrac{57}{20}$

$=\dfrac{171}{20}$