nhầm
\(\frac{\frac{4}{23}}{4}=4:\frac{23}{4}=\frac{16}{23}\)
nhầm
\(\frac{\frac{4}{23}}{4}=4:\frac{23}{4}=\frac{16}{23}\)
\(\frac{\frac{-4}{5}+\frac{4}{19}-\frac{4}{23}}{\frac{8}{5}-\frac{8}{19}+\frac{8}{23}}\)
A = \(\frac{\frac{-4}{9}+\frac{4}{19}-\frac{4}{23}}{\frac{8}{5}-\frac{8}{19}+\frac{8}{23}}\)
\(4\frac{5}{16}+\frac{4}{23}+0.5-\frac{5}{16}+\frac{19}{23}\)
Tính tổng M=\(5\frac{4}{23}.27\frac{3}{47}.4\frac{3}{47}.\left(-5\frac{4}{23}\right)\)
a, \(1\frac{4}{23}+\frac{5}{21}-\frac{4}{23}+0.5+\frac{16}{21}\)
Tính giá trị biểu thức:
F= \(\frac{15}{14}-\left(\frac{17}{23}-\frac{80}{87}+\frac{5}{4}\right)+\left(\frac{17}{23}-\frac{15}{4}+\frac{1}{4}\right)\)
a)\(\frac{16}{21}+\frac{4}{23}+\frac{5}{21}-\frac{4}{23}-\frac{5}{21}\)
b)\(\left(\frac{3}{4}\right)^3:\left(\frac{3}{4}\right)^2\)
c)\(\frac{1}{3}.\frac{-4}{5}+\frac{1}{3}.\frac{-6}{5}\)
tính nhanh
\(5\frac{4}{23}\times27\frac{3}{47}+4\frac{3}{47}\times\left(-5\frac{4}{23}\right)\)
Tính
\(1\frac{4}{23}+\frac{5}{21}-\frac{4}{23}+0,5+\frac{16}{21}\)
Giai giup mk
a) (-2,5) . (-7,5) . (-4)
b)\(1\frac{4}{23}+\frac{8}{21}-\frac{4}{23}+0,6+\frac{13}{21}\)
c)\(\frac{2}{7}.15\frac{1}{3}-\frac{2}{7}.20\frac{1}{3}+4\frac{1}{3}\)
d)\(2\frac{1}{4}:\left(\frac{-3}{5}\right)-1\frac{1}{4}:\left(\frac{-3}{5}\right)\)