\(\frac{1}{9}\)x \(\frac{2}{145}\)- \(4\frac{1}{3}\)x \(\frac{2}{145}\)+ \(\frac{2}{145}\)a) \(\frac{11}{125}\)-\(\frac{17}{18}\)-\(\frac{5}{7}\)+ \(\frac{4}{9}\)+ \(\frac{17}{14}\)b) 1 - \(\frac{1}{2}\)+ 2 - \(\frac{2}{3}\)+ 3 -\(\frac{3}{4}\)+ 4 -\(\frac{1}{4}\)- 3 - \(\frac{1}{3}\)-2 -\(\frac{1}{2}\)- 1c) 26 : \(\orbr{\begin{cases}3:\left(0,2-0,1\right)\\2,5.\left(0,8+1,2\right)\end{cases}}\)+ \(\frac{\left(34,06-33,81\right).4}{6,84:\left(28,57-25,15\right)}\)tất cả...
Đọc tiếp
\(\frac{1}{9}\)x \(\frac{2}{145}\)- \(4\frac{1}{3}\)x \(\frac{2}{145}\)+ \(\frac{2}{145}\)
a) \(\frac{11}{125}\)-\(\frac{17}{18}\)-\(\frac{5}{7}\)+ \(\frac{4}{9}\)+ \(\frac{17}{14}\)
b) 1 - \(\frac{1}{2}\)+ 2 - \(\frac{2}{3}\)+ 3 -\(\frac{3}{4}\)+ 4 -\(\frac{1}{4}\)- 3 - \(\frac{1}{3}\)-2 -\(\frac{1}{2}\)- 1
c) 26 : \(\orbr{\begin{cases}3:\left(0,2-0,1\right)\\2,5.\left(0,8+1,2\right)\end{cases}}\)+ \(\frac{\left(34,06-33,81\right).4}{6,84:\left(28,57-25,15\right)}\)tất cả +\(\frac{2}{3}:\frac{4}{21}\)
a)=\(\frac{1}{9}.\frac{2}{145}-\frac{13}{3}.\frac{2}{145}+\frac{2}{145}\)
=\(\frac{2}{145}\left(\frac{1}{9}-\frac{13}{3}+1\right)\)
=\(\frac{2}{145}.\frac{-29}{9}\)
=\(\frac{-2}{45}\)
Học tốt nha!!!^^
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