1\(\frac{13}{15}.0.75-\left(\frac{8}{15}+25\%\right)\)
giúp mình nha
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Bài 1:
\(\frac{32}{15}:\left(-1\frac{1}{5}+1\frac{1}{3}\right)\) \(1\frac{13}{15}.0,75-\left(\frac{8}{15}+0.25\right).\frac{24}{47}\)
\(0,2.\frac{15}{36}-\left(\frac{2}{5}+\frac{2}{3}\right):1\frac{1}{5}\) \(5:\left(4\frac{25}{28}-1\frac{25}{28}\right)-1\frac{3}{8}:\left(\frac{3}{8}+\frac{9}{20}\right)\)
Tính :
\(A=\frac{28}{15}.\left(\frac{1}{2}\right)^2.3+\left(\frac{8}{15}-\frac{79}{60}\right).\frac{24}{47}\)
\(B=\frac{75}{100}.\frac{28}{15}-\left(\frac{104}{195}+\frac{25}{100}\right).\frac{24}{47}-\frac{51}{13}.\frac{1}{3}\)
Ai làm xong mk k nha!!!
mik ko ghi lại đề nhé!
\(A=\left(\frac{18}{15}.\frac{1}{4}.3\right)+\left(-\frac{47}{60}\right).\frac{24}{47}\)
\(A=\frac{8}{5}+\left(-\frac{2}{5}\right)\)
\(A=\frac{6}{5}\)
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\(B=\frac{3}{4}.\frac{28}{15}-\left(\frac{8}{15}+\frac{1}{4}\right).\frac{24}{47}-\frac{17}{13}\)
\(B=\frac{7}{5}-\frac{47}{60}.\frac{24}{47}-\frac{17}{13}\)
\(B=\frac{7}{5}-\frac{2}{5}-\frac{17}{13}\)
\(B=1-\frac{17}{13}\)
\(B=-\frac{4}{13}\)
THANKS
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Câu 1:*LƯU Ý: dấu này. là nhân.a) 57%+1frac{2}{15}:frac{68}{25}-2.282b) 1frac{13}{15}.0,75-left(frac{8}{15}+0,25right).frac{24}{47}c) frac{3}{4}.frac{16}{9}-frac{7}{5}:frac{-21}{26}d) 5:left(4frac{3}{4}-1frac{25}{28}right)-1frac{3}{8}:left(frac{3}{8}-frac{9}{20}right)CÁC BẠN ƠI GIÚP MÌNH VOIỨ MAI MK NỘP CHO CÔ RÙI HUHU
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Câu 1:
*LƯU Ý: dấu này"." là nhân.
a) \(57\%+1\frac{2}{15}:\frac{68}{25}-2.282\)
b) \(1\frac{13}{15}.0,75-\left(\frac{8}{15}+0,25\right).\frac{24}{47}\)
c) \(\frac{3}{4}.\frac{16}{9}-\frac{7}{5}:\frac{-21}{26}\)
d) \(5:\left(4\frac{3}{4}-1\frac{25}{28}\right)-1\frac{3}{8}:\left(\frac{3}{8}-\frac{9}{20}\right)\)
CÁC BẠN ƠI GIÚP MÌNH VOIỨ MAI MK NỘP CHO CÔ RÙI HUHU
a) =\(\frac{57}{100}+\frac{17}{15}.\frac{25}{68}-\frac{1141}{500}\)
= \(\frac{57}{100}+\frac{1}{3}.\frac{5}{4}-\frac{1141}{500}\)
= \(\frac{57}{100}+\frac{5}{12}-\frac{1141}{500}\)
= -\(\frac{1943}{1500}\)
"." là nhân
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b) = \(\frac{28}{15}.\frac{3}{4}-\left(\frac{8}{15}+\frac{1}{4}\right).\frac{21}{47}\)
= \(\frac{7}{5}-\frac{47}{60}.\frac{21}{47}\)
= \(\frac{7}{5}-\frac{7}{20}\)
= \(\frac{28}{20}-\frac{7}{20}\)
= \(\frac{21}{20}\)
K nhé
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NÃY MÌNH GỬI LỘN ĐÂY MỚI LÀ CÂU D CÂU D: https://scontent.fhan4-1.fna.fbcdn.net/v/t34.0-12/20668774_859181347591743_1500923664_n.jpg?oh=5664b3e559d9a895ab684c90a6107d68&oe=598C13E1
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\(1\frac{13}{15}.\left(0,5\right)^2\)\(.|-3|+\left(\frac{8}{15}-25\%\right):1\frac{23}{24}\)
\(1\frac{13}{15}\cdot\left(0.5\right)^2\cdot\left|-3\right|+\left(\frac{8}{15}-25\%\right):1\frac{23}{24}\)
\(=\frac{28}{15}\cdot\frac{1}{4}\cdot3+\left(\frac{8}{15}-\frac{1}{4}\right)\cdot\frac{47}{24}\)
\(=\frac{28\cdot1\cdot3}{15\cdot4}+\frac{17}{60}\cdot\frac{47}{24}\)
\(=\frac{21}{25}+\frac{799}{1440}=\frac{10043}{7200}\)
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giúp mình vs :
\(\frac{13}{15}.0,25.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}\)
\(1\frac{13}{15}\cdot0,75-\left(\frac{8}{15}+25\%\right)\)
=28/15 . 3/4-(8/15+1/4)
=7/5-(32/60-15/60)
=7/5-47/60
=84/60-47/60
=37/60
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Tính nhanh
\(2\frac{1}{8}:1\frac{11}{14}-\left(15-13\frac{1}{3}\right):4\frac{1}{6}\)
Ai bt giúp mình nhanh nha!!!!!!!
Các cô các thầy ơi , giúp em vs .
= \(\frac{17}{8}:\frac{25}{14}-\left(15-\frac{40}{3}\right):\frac{25}{6}\)
= \(\frac{17}{8}.\frac{14}{25}-\left(\frac{45}{3}-\frac{40}{3}\right).\frac{6}{25}\)
= \(\frac{119}{100}-\frac{5}{3}.\frac{6}{25}\) = \(\frac{119}{100}-\frac{2}{5}\)
= \(\frac{119}{100}-\frac{40}{100}=\frac{79}{100}\)
Chúc bạn Hk tốt!!!!!
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Nhưng mk cần các cách làm ra bạn ơi
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Xem thêm câu trả lời
tìm x,biết:a)frac{2}{left(x+2right)left(x+4right)}+frac{4}{left(x+4right)left(x+8right)}+frac{6}{left(x+8right)left(x+14right)}frac{x}{left(x+2right)left(x+14right)}b)frac{x+1}{10}+frac{x+1}{11}+frac{x+1}{12}frac{x+1}{13}+frac{x+1}{14}c)left(x+2right)^2frac{38}{25}+frac{9}{10}-frac{11}{15}+frac{13}{21}-frac{15}{28}+frac{17}{36}-...+frac{197}{4851}-frac{199}{4950}giúp tớ với,huhu
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tìm x,biết:
a)\(\frac{2}{\left(x+2\right)\left(x+4\right)}+\frac{4}{\left(x+4\right)\left(x+8\right)}+\frac{6}{\left(x+8\right)\left(x+14\right)}=\frac{x}{\left(x+2\right)\left(x+14\right)}\)
b)\(\frac{x+1}{10}+\frac{x+1}{11}+\frac{x+1}{12}=\frac{x+1}{13}+\frac{x+1}{14}\)
c)\(\left(x+2\right)^2=\frac{38}{25}+\frac{9}{10}-\frac{11}{15}+\frac{13}{21}-\frac{15}{28}+\frac{17}{36}-...+\frac{197}{4851}-\frac{199}{4950}\)
giúp tớ với,huhu
1 tháng 4 2019 lúc 12:37
BT:\(1\frac{13}{15}:0,5^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}\)
Ai lm đc 3 tick nha!!!
giúp P.A zới
\(1\frac{13}{15}:\left(0,5\right)^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}=\frac{28}{15}.12+\left(\frac{8}{15}-\frac{79}{60}\right).\frac{24}{47}\)
\(=\frac{112}{5}+\left(-\frac{47}{60}.\frac{24}{47}\right)\)
\(=\frac{112}{5}-\frac{2}{5}\)
\(=\frac{100}{5}=20\)
Study well ! >_<
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\(1\frac{13}{15}:0,5^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}\)
\(=\frac{28}{15}:0,25.3+\left(\frac{8}{15}-\frac{79}{60}\right):\frac{47}{24}\)
\(=\frac{112}{15}.3+\left(\frac{32}{60}-\frac{79}{60}\right):\frac{47}{24}\)
\(=\frac{112}{5}+\frac{-47}{60}:\frac{47}{24}\)
\(=\frac{112}{5}+\frac{-47}{60}.\frac{24}{47}\)
\(=\frac{112}{5}+\frac{-1}{5}.\frac{2}{1}\)
\(=\frac{112}{5}+\frac{-2}{5}\)
\(=\frac{110}{5}\)
\(=\frac{22}{1}=22\)
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