giup mik voi
a, A= ( 3/5 - 0,435 + 1/200 ) : ( -0,04) / 30,75 + 1/12 + 31/6
Những câu hỏi liên quan
A= ( 3/5 - 0,435 + 1/200 ) : ( -0,04) / 30,75 + 1/12 + 3 va 1/6
\(A=\left(\frac{3}{5}-0.435+\frac{1}{200}\right)\div\frac{\left(-0.04\right)}{30.75}+\frac{1}{12}+3\frac{1}{6}\)
\(A=\left(\frac{3}{5}-\frac{87}{200}+\frac{1}{200}\right)\div\frac{-4}{3075}+\frac{1}{12}+\frac{19}{6}\)
\(A=\left(\frac{120}{200}-\frac{87}{200}+\frac{1}{200}\right)\div\frac{-4}{3075}+\frac{1}{12}+\frac{19}{6}\)
\(A=\frac{34}{200}×\frac{3075}{-4}+\frac{1}{12}+\frac{19}{6}\)
\(A=\frac{-2091}{16}+\frac{1}{12}+\frac{19}{6}\)
\(A=\frac{-6273}{48}+\frac{4}{48}+\frac{152}{48}\)
\(A=\frac{-6117}{48}=\frac{-2039}{16}\)
Cbht
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Tính:
a) M = \(1\left(\frac{-6}{13}+\frac{15}{26}-\frac{47}{39}-\frac{1}{78}\right):\left(99\frac{17}{65}-100\frac{5}{52}+\frac{1}{130}\right).\)
b) V = \(\frac{\left(\frac{3}{5}-0,435+\frac{1}{200}\right):\left(-0,04\right)}{30,75+\frac{1}{12}+3\frac{1}{6}}\)
Thực hiện phép tính
M=(-6/13 + 15/26 - 47/39 - 1/78) : (9917/65 - 1005/32 + 1/130)N= (3/5 - 0,439 + 1/200) : (-0,04)30,75 + 1/12 31/6
Bài 1 :Thực hiện phép tính :
a) M (frac{-6}{13}+frac{15}{26}-frac{47}{39}-frac{1}{78}) : (99frac{17}{65}-100frac{5}{52}+frac{1}{130})
b) N frac{(frac{3}{5}-0,435+frac{1}{200}):left(-0,04right)}{30,75+frac{1}{12}+3frac{1}{6}}
c) P (frac{-5}{6}:frac{-10}{11})+frac{frac{1}{4}+frac{5}{8}-frac{7}{13}}{frac{-2}{12}-frac{10}{24}+frac{14}{39}}
Bài 2 : Thực hiện phép tính :V
a) P frac{frac{1}{5}-frac{1}{9}+frac{1}{13}}{frac{9}{5}-1+frac{9}{13}}+frac{frac{10}{7}-frac{10}{11}-frac{10}{17}}{frac{12}{...
Đọc tiếp
Bài 1 :Thực hiện phép tính :
a) M =(\(\frac{-6}{13}+\frac{15}{26}-\frac{47}{39}-\frac{1}{78}\)) : (\(99\frac{17}{65}-100\frac{5}{52}+\frac{1}{130}\))
b) N = \(\frac{(\frac{3}{5}-0,435+\frac{1}{200}):\left(-0,04\right)}{30,75+\frac{1}{12}+3\frac{1}{6}}\)
c) P = (\(\frac{-5}{6}:\frac{-10}{11}\))+\(\frac{\frac{1}{4}+\frac{5}{8}-\frac{7}{13}}{\frac{-2}{12}-\frac{10}{24}+\frac{14}{39}}\)
Bài 2 : Thực hiện phép tính :V
a) P =\(\frac{\frac{1}{5}-\frac{1}{9}+\frac{1}{13}}{\frac{9}{5}-1+\frac{9}{13}}+\frac{\frac{10}{7}-\frac{10}{11}-\frac{10}{17}}{\frac{12}{7}-\frac{12}{11}-\frac{12}{17}}\)
b) Q = \(\frac{\frac{1}{14}-\frac{1}{30}-\frac{1}{46}}{\frac{2}{35}-\frac{2}{75}-\frac{2}{115}}:\frac{\frac{3}{8}-\frac{15}{17}+\frac{30}{31}}{\frac{1}{6}-\frac{20}{51}+\frac{40}{93}}\)
có rất nhiều câu dễ ở trong đề sao bạn Ko thử làm đi rồi câu nào khó lại hỏi
(1/12+19/6-30,75). x-8 =(3/5+0,415+1/200):0.01. tìm x nha
Ta làm vế kia trước:
\(\left(\frac{3}{5}+0,415+\frac{1}{200}\right):0,01=\left(\frac{3}{5}+\frac{83}{200}+\frac{1}{200}\right):0,01\)
\(=\left(\frac{120}{200}+\frac{83}{200}+\frac{1}{200}\right):0,01\)
\(=\frac{204}{200}:\frac{1}{100}=\frac{51}{50}.100=102\)
=> \(\left(\frac{1}{12}+\frac{19}{6}-30,75\right).x-8=102\)
\(\left(\frac{1}{12}+\frac{19}{6}-\frac{123}{4}\right).x=102+8=110\)
\(\left(\frac{1}{12}+\frac{38}{12}-\frac{369}{12}\right).x=110\)
\(-\frac{330}{12}.x=110\)
\(-\frac{55}{2}.x=110\)
\(x=110:-\frac{55}{2}=110.-\frac{2}{55}=-4\)
**** CHO MK NHA , TKS ^^
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Tìm x biết:
(1/12+19/6-30,75).x-8=(3/5+0,415+1/200);0,01
Tìm x
a,(4x-5).(\(\dfrac{5}{4}\)x-2)=0 b,(\(\dfrac{1}{12}\)+\(3\dfrac{1}{6}\)-30,75)x-8=(\(\dfrac{3}{5}\)+0,415+\(\dfrac{1}{200}\)):0,01
a: =>4x-5=0 hoặc 5/4x-2=0
=>x=5/4 hoặc x=2:5/4=2*4/5=8/5
b: =>(1/12+19/6-30,75)*x-8=102
=>-55/2x=110
=>x=-4
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Tìm x biết:
\(\left(\dfrac{1}{12}+3\dfrac{1}{6}-30,75\right).x-8=\left(\dfrac{3}{5}+0,415+\dfrac{1}{200}\right):0,01\)
\(\left(\dfrac{1}{12}+\dfrac{19}{6}-\dfrac{123}{4}\right).x-8=\left(\dfrac{3}{5}+\dfrac{83}{200}+\dfrac{1
}{200}\right)\): \(\dfrac{1}{100}\)
\(\dfrac{-53}{2}\) . x - 8 = \(\dfrac{51}{50}\): \(\dfrac{1}{100}\)
\(\dfrac{-53}{2}.x-8=\)102
\(\dfrac{-53}{2}\).x = 102 + 8
\(\dfrac{-53}{2}\).x = 110
x = 110 : \(\dfrac{-53}{2}\)
x = \(\dfrac{-204}{53}\)
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Thực hiện phép tính
a) \(\dfrac{-0,8:\left(\dfrac{4}{5}.1,25\right)}{0,64-\dfrac{1}{5}}\)
b) ( 13,71 - \(1\dfrac{5}{6}\) ) . 6 - 6 . 13 . 17
c) \(\dfrac{\left(\dfrac{3}{5}+0,415+\dfrac{1}{200}\right):0,01}{30,75+\dfrac{1}{12}+3\dfrac{1}{6}}\)
a) \(\dfrac{-0.8:\left(\dfrac{4}{5}\cdot1.25\right)}{0.64-\dfrac{1}{5}}=\dfrac{\dfrac{-4}{5}:\left(\dfrac{4}{5}\cdot\dfrac{5}{4}\right)}{\dfrac{16}{25}-\dfrac{1}{5}}=\dfrac{\dfrac{-4}{5}:1}{\dfrac{16}{25}-\dfrac{5}{25}}=\dfrac{\dfrac{-4}{5}}{\dfrac{11}{25}}=\dfrac{-4}{5}\cdot\dfrac{25}{11}=\dfrac{-20}{11}\)
b) \(\left(13.71-1\dfrac{5}{6}\right)\cdot6-6\cdot13\cdot17=\left(\dfrac{1371}{100}-\dfrac{11}{6}\right)\cdot6-6\cdot13\cdot17=\dfrac{3563}{300}\cdot6-6\cdot13\cdot17=\dfrac{3563}{50}-6\cdot13\cdot17=\dfrac{3563}{50}-1326=\dfrac{-62737}{50}\)
c) \(\dfrac{\left(\dfrac{3}{5}+0.415+\dfrac{1}{200}\right):0.01}{30.75+\dfrac{1}{12}+3\dfrac{1}{6}}=\dfrac{\left(\dfrac{3}{5}+\dfrac{83}{200}+\dfrac{1}{200}\right):\dfrac{1}{100}}{\dfrac{123}{4}+\dfrac{1}{12}+\dfrac{19}{6}}=\dfrac{\dfrac{51}{50}:\dfrac{1}{100}}{34}=\dfrac{102}{34}=3\)
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