Bài 10: Phép nhân phân số
Các câu hỏi tương tự
-5/8 x -12/29 x 8/-10 x 5,8
tìm x
(x+1)+\(\left(x+\dfrac{1}{3}\right)+\left(x+\dfrac{1}{6}\right)+...+\left(x-\dfrac{1}{55}\right)=11\dfrac{9}{11}\)
Tính:
a,(1-1/5)x(1-2/5)x(1-3/5)x.....x(1-9/5)
b,1/2x2/3x3/4x4/5x.....x9/10
7 x 10
--- < --- < ---- (x là số nguyên dương)
x 4 x
Giaỉ dùm mình với
-7/x = -21/x-34
tìm x
rút gọn biểu thức sau B= x-42-[(13+x)-(17-x)]
\(x+\frac{1}{2}.x+\frac{x}{3}\)bằng\(\frac{5}{6}\)
\(A.\dfrac{-15}{28}x\dfrac{7}{25}\\ B.\dfrac{-5}{14}x\dfrac{7}{-3}\\ C.\dfrac{-1}{5}-\dfrac{7}{15}x\dfrac{9}{35}\\ D.\dfrac{-3}{4}-(\dfrac{-1}{2})^2\\ E.\dfrac{-4}{5}-\dfrac{-4}{5}x\dfrac{15}{16}\\F.(\dfrac{3}{4}+\dfrac{-7}{2})x(\dfrac{2}{11}+\dfrac{12}{22})\)
Tìm x biết
a)\(\dfrac{11}{12}\).x + \(\dfrac{3}{4}\)= -\(\dfrac{1}{6}\)
b)3-\(\left(\dfrac{1}{6}-x\right)\).\(\dfrac{2}{3}\)=\(\dfrac{2}{3}\)