\(=\left(\dfrac{2}{2}+\dfrac{1}{2}\right)\)x \(\left(\dfrac{3}{3}+\dfrac{1}{3}\right)\) x\(\left(\dfrac{4}{4}+\dfrac{1}{4}\right)\) x \(\left(\dfrac{5}{5}+\dfrac{1}{5}\right)\)
\(=\dfrac{3}{2}\) x \(\dfrac{4}{3}\) x \(\dfrac{5}{4}\) x \(\dfrac{6}{5}\)
\(=3\)
tính nhanh
\(\left(1-\dfrac{1}{2}\right)x\left(1-\dfrac{1}{3}\right)x\left(1-\dfrac{1}{4}\right)x\left(1-\dfrac{1}{5}\right)=\)
làm ơn giúp mik với ạ ^^
Tính giá trị biểu thức
\(\dfrac{11}{2}:\dfrac{1}{4}x\dfrac{5}{3}\)
\(\dfrac{5}{2}-\dfrac{1}{4}+\dfrac{5}{3}\)
\(\dfrac{14}{5}x\dfrac{2}{3}+5\)
giúp mình nhanh nha mình tick cho
a)(\(\dfrac{31}{35}\)-\(\dfrac{4}{7}\)) x \(\dfrac{8}{7}\) : 2
b)(1 - \(\dfrac{1}{2}\)) x ( 1- \(\dfrac{1}{3}\)) x (1-\(\dfrac{1}{4}\)) x ( 1-\(\dfrac{1}{5}\))
nhanh giúp mik với!!
lời giải chi tiết ạ!!!
1. Tính
a, \(\dfrac{2}{3}\) + \(\dfrac{5}{2}\) - \(\dfrac{3}{4}\)
b, \(\dfrac{2}{5}\) x \(\dfrac{1}{2}\) : \(\dfrac{1}{3}\)
c, \(\dfrac{2}{9}\) : \(\dfrac{2}{9}\) x \(\dfrac{1}{3}\)
Giúp tui với mình cần gấp lắm.
Tính giá trị biểu thức
\(\dfrac{5}{2}-\dfrac{1}{4}+\dfrac{5}{3}\) \(\dfrac{11}{2}:\dfrac{1}{4}x\dfrac{5}{3}\)
\(\dfrac{14}{5}x\dfrac{2}{3}+5\)
giúp mình, mình tick cho
\(\dfrac{2}{7}\) x \(x\) = \(\dfrac{23}{35}\) : \(x\) = \(\dfrac{1}{3}\)
giải nhanh lên nhé! <:(
\(\dfrac{5}{2}\) x \(\dfrac{1}{3}\) + \(\dfrac{1}{4}\)
giúp mình với
a, \(\dfrac{1}{2}\) x \(\dfrac{1}{3}\) x \(\dfrac{1}{4}\) = b, \(\dfrac{1}{2}\): \(\dfrac{1}{3}\):\(\dfrac{1}{4}\)= c, \(\dfrac{1}{3}\) x \(\dfrac{1}{5}\) : \(\dfrac{1}{7}\)=
\(\dfrac{2}{5}\) x \(\dfrac{3}{4}-\dfrac{1}{8}\) \(= \)
\(\dfrac{4}{3}+\dfrac{1}{3}-\dfrac{1}{5}=\)
\(\dfrac{9}{20}-\dfrac{3}{5}\) x \(\dfrac{1}{4}\)\(= \)
\(\dfrac{2}{8}+\dfrac{2}{3}:\dfrac{4}{5}\)\(=\)
