f . -1,75-(-1^9-2 1^18)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}\\ =\dfrac{-63+4+37}{36}=\dfrac{-23}{36}\)
\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)=-\dfrac{7}{4}+\dfrac{1}{9}+\dfrac{37}{18}=\dfrac{\left(-7\right).9+4+37.2}{36}=\dfrac{5}{12}\)
\(-1,75-\left(\dfrac{-1}{9}-2\dfrac{1}{18}\right)\)
\(=-1,75-\left(\dfrac{-2}{18}-\dfrac{37}{18}\right)\)
\(=\dfrac{-10,5}{6}-\dfrac{13}{6}\)
\(=\dfrac{-23,5}{6}\)
\(=-\dfrac{47}{12}\)
Dấu "^" của cậu nghĩa là phân số?
\(a,-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)=-\dfrac{7}{4}-\left(-\dfrac{2}{18}-\dfrac{37}{18}\right)=-\dfrac{7}{4}+\dfrac{13}{6}=\dfrac{5}{12}\)
\(b,-\dfrac{1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)=-\dfrac{1}{12}-\dfrac{55}{24}=-\dfrac{19}{8}\)
\(c,-\dfrac{5}{6}-\left(-\dfrac{3}{8}+\dfrac{1}{30}\right)=-\dfrac{5}{6}+\dfrac{41}{120}=-\dfrac{59}{120}\)
-1/12-(2 5/8- 1/3)
=-1/12-55/24
=-19/8
-1,75 - (-1/9- 2 1/18)
=-1,75 +13/6
=5/12
a.-1,75-(-\(\dfrac{1}{9}\)-2\(\dfrac{1}{8}\))
-1,75-\(\dfrac{1}{9}+\dfrac{17}{8}\)
\(-\dfrac{7}{4}-\dfrac{1}{9}+\dfrac{17}{8}\)
\(\dfrac{-126}{72}-\dfrac{8}{72}+\dfrac{153}{72}\)
=\(\dfrac{19}{72}\)
b.\(\dfrac{-1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)\)
\(\dfrac{-1}{12}-\left(\dfrac{21}{8}-\dfrac{1}{3}\right)\)
\(\dfrac{-1}{12}-\dfrac{21}{8}+\dfrac{1}{3}\)
\(\dfrac{-2}{24}-\dfrac{63}{24}+\dfrac{64}{24}\)
=\(\dfrac{-1}{24}\)
\(-1,75-\left(-\dfrac{1}{9}-2\dfrac{1}{18}\right)\)
\(=-1,75-\left(-\dfrac{1}{9}-\dfrac{37}{18}\right)\)
\(=-1,75-\left(-\dfrac{39}{18}\right)\)
\(=\dfrac{5}{12}\)