Các câu hỏi tương tự
So sánh các phân số sau:
a, \(\dfrac{-11}{-32}\) và \(\dfrac{\text{16}}{\text{49}}\)
b, \(\dfrac{\text{- 2020 }}{\text{-2021}}\) và \(\dfrac{\text{-2021}}{\text{2022}}\)
\(\text{Tìm số nguyên n để phân số A=}\dfrac{12n-1}{4n-3}\text{có giá trị nhỏ nhất}\)
dfrac{text{3}}{17}text{+}dfrac{text{text{-}5}}{text{1}text{3}}text{+}dfrac{text{1}text{8}}{text{3}text{5}}text{+}dfrac{text{14}}{text{17}}text{+}dfrac{text{17}}{text{text{-}35}}text{+}dfrac{text{ }text{-}text{8}}{text{text{1}text{3}}}?dfrac{text{text{ }text{-}text{3}}}{text{8}}text{+}dfrac{text{1}text{2}}{text{25}}text{+}dfrac{text{5}}{text{-8}}text{+}dfrac{text{2}}{text{-5}}text{+}dfrac{text{1}text{3}}{text{25}}text{}text{?}text{ }text{(}dfrac{text{9}}{text{1}text{6}}text{+}dfrac{text{8}}{text{...
Đọc tiếp
\(\dfrac{\text{3}}{17}\text{+}\dfrac{\text{\text{-}5}}{\text{1}\text{3}}\text{+}\dfrac{\text{1}\text{8}}{\text{3}\text{5}}\text{+}\dfrac{\text{14}}{\text{17}}\text{+}\dfrac{\text{17}}{\text{\text{-}35}}\text{+}\dfrac{\text{ }\text{-}\text{8}}{\text{\text{1}\text{3}}}\)=?
\(\dfrac{\text{\text{ }\text{-}\text{3}}}{\text{8}}\text{+}\dfrac{\text{1}\text{2}}{\text{25}}\text{+}\dfrac{\text{5}}{\text{-8}}\text{+}\dfrac{\text{2}}{\text{-5}}\text{+}\dfrac{\text{1}\text{3}}{\text{25}}\text{=}\text{?}\)\(\text{ }\text{(}\dfrac{\text{9}}{\text{1}\text{6}}\text{+}\dfrac{\text{8}}{\text{-27}}\text{)}\text{+}\text{(}\text{1}\text{+}\dfrac{\text{7}}{\text{16}}\text{+}\dfrac{\text{-}\text{1}\text{9}}{\text{27}}\text{=}\text{?}\)
\(\dfrac{\text{4}\text{2}}{\text{46}}\text{+}\dfrac{\text{2}\text{5}\text{0}}{\text{2}\text{8}\text{6}}\dfrac{\text{-}\text{2}\text{1}}{\text{2}\text{3}\text{2}}\text{+}\dfrac{\text{-}\text{143143}}{\text{143143}}\text{=}\text{?}\)
Mọi người giúp mình với mình sắp thi rồi còn 1 ngãy nữa thôi
Thực hiện phép tính (hợp lý nếu có thể):
\(\dfrac{\text{1}}{\text{2}}\). (\(\dfrac{\text{4}}{\text{3}}\) + \(\dfrac{\text{2}}{\text{5}}\text{ }\)) - \(\dfrac{\text{3}}{\text{4}}\text{ }\). (\(\dfrac{\text{8}}{\text{9}}\) + \(\dfrac{\text{16}}{\text{3}}\))
12 tháng 5 2021 lúc 15:11
a,\(\dfrac{x}{-3}\text{=}\dfrac{-5}{15}\) b,\(\dfrac{1173}{x}\text{=}\dfrac{3}{5}\)
c,\(\dfrac{2}{x}\text{=}\dfrac{y}{15}\text{=}\dfrac{-25}{75}\)
31 tháng 5 2021 lúc 10:17
\(\text{|}\dfrac{7}{5}x+\dfrac{2}{3}\text{|}\text{=}\text{|}\dfrac{4}{3}x-\dfrac{1}{4}\text{|}\)
3 tháng 5 2022 lúc 12:31
a) tìm x :\(\dfrac{2}{1.4}x+\dfrac{2}{4.7}x+\dfrac{2}{7.10}x+....+\dfrac{2}{31.344}x=10\)
b)so sánh hai phân số sau : A=\(\dfrac{6^{2020}+1}{6^{2021}+1}\)và B=\(\dfrac{6^{\text{2021}}+1}{\text{6}^{\text{2022}}+1}\)
ét o ét giúp với ạ
31 tháng 5 2021 lúc 10:10
\(\text{|}\dfrac{5}{4}x-\dfrac{7}{2}\text{|}-\text{|}\dfrac{5}{8}x+\dfrac{3}{5}\text{|}\text{=}0\)
12 tháng 5 2021 lúc 16:06
dfrac{-7}{x}text{}dfrac{-21}{x-34} dfrac{4-x}{-5}text{}dfrac{-5}{4-x} dfrac{3}{x+2}text{}dfrac{5}{2x+1} dfrac{1}{2}text{}dfrac{x+1}{3x} dfrac{-3}{x+1}text{}dfrac{4}{2-2x}
Đọc tiếp
\(\dfrac{-7}{x}\text{=}\dfrac{-21}{x-34}\) \(\dfrac{4-x}{-5}\text{=}\dfrac{-5}{4-x}\)
\(\dfrac{3}{x+2}\text{=}\dfrac{5}{2x+1}\) \(\dfrac{1}{2}\text{=}\dfrac{x+1}{3x}\)
\(\dfrac{-3}{x+1}\text{=}\dfrac{4}{2-2x}\)