\((\)\(\frac{1}{2}\)+\(\frac{3}{16}\)\()\):\(\frac{1}{7}\)-\((\)7+\(\frac{5}{8}\)\()\).\(\frac{1}{2}\)
= \(\frac{11}{16}\):\(\frac{1}{7}\)- \(\frac{61}{8}\).\(\frac{1}{2}\)
=\(\frac{77}{16}\)-\(\frac{61}{16}\)
=1
Bài 12: Phép chia phân số
Các câu hỏi tương tự
4/5 : ( 4/5 . -5/4) : ( 16/25 - 1/5 )
11/12 : ( 7/9 + -1/3 ) - ( 2/3 - 5/15 )
-2/5 . ( 9/8 + 16/32 -3/4 ) - 9/10
( 4/3 + 8/3 ) . ( 7/4 - 6/4 ) : ( 6/5 + 12/5 + 1/5 )
4/5 : ( 4/5 . -5/4) : ( 16/25 - 1/5 )
11/12 : ( 7/9 + -1/3 ) - ( 2/3 - 5/15 )
-2/5 . ( 9/8 + 16/32 -3/4 ) - 9/10
( 4/3 + 8/3 ) . ( 7/4 - 6/4 ) : ( 6/5 + 12/5 + 1/5 )
thực hiện phép tính:
1)\(\frac{12}{7}:\frac{16}{5}\)
2)\(\frac{-2}{7}:\frac{6}{11}\)
3)\(\frac{-1}{7}:\frac{-1}{5}\)
4)\(\left(-2\right):\frac{6}{11}\)
5\(\frac{-6}{11}:\left(-3\right)\))
Tìm x biết :
a) x.dfrac{3}{7}dfrac{2}{3}
b) x:dfrac{8}{11}dfrac{11}{3}
c) dfrac{2}{5}:x-dfrac{1}{4}
d) dfrac{4}{7}.x-dfrac{2}{3}dfrac{1}{5}
e) dfrac{2}{9}-dfrac{7}{8}.xdfrac{1}{3}
g) dfrac{4}{5}+dfrac{5}{7}:xdfrac{1}{6}
Đọc tiếp
Tìm \(x\) biết :
a) \(x.\dfrac{3}{7}=\dfrac{2}{3}\)
b) \(x:\dfrac{8}{11}=\dfrac{11}{3}\)
c) \(\dfrac{2}{5}:x=-\dfrac{1}{4}\)
d) \(\dfrac{4}{7}.x-\dfrac{2}{3}=\dfrac{1}{5}\)
e) \(\dfrac{2}{9}-\dfrac{7}{8}.x=\dfrac{1}{3}\)
g) \(\dfrac{4}{5}+\dfrac{5}{7}:x=\dfrac{1}{6}\)
M=\(\dfrac{\dfrac{7}{2012}+\dfrac{7}{9}-\dfrac{1}{4}}{\dfrac{5}{9}-\dfrac{3}{2012}-\dfrac{1}{2}}\) tính M
3(1/2-x)-5(x-1/10)=-7/4
4(3/4+x)-1/5=7x-1/7 giúp mik với
Tính giá trị biểu thức a ) ( -3/4 :2/-3). -5/7 b) -2/-5 : ( 7/-5 : -3/2 )
Tính theo cách hợp lí:
e) -52 . 4 : (-2) - 18 : (-3) + 3
f) -|-16 - 12| : 7 - 7 . (-3)2 - (-6)2
g) (-49 + 13) : (-2)2 - 43 : (-2)3
h) [3 . (-5)5 - 13 . (-5)5 ] : (-5)4
Tính
\(\dfrac{\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{7}}{\dfrac{7}{6}-\dfrac{7}{8}+\dfrac{7}{14}+\dfrac{7}{10}}\)