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5/9 x 12/25 = 4/15
12/11 : 36/ 55 = 5/3
9/55 x 22 = 18/5
144/7 : 36 = 4/7
\(\frac{5}{9}x\frac{12}{25}=\frac{4}{15}\)
\(\frac{9}{55}x22=\frac{18}{5}\)
\(\frac{12}{11}:\frac{36}{55}=\frac{5}{3}\)
\(\frac{114}{7}:36=\frac{19}{42}\)
a) \(2\frac{2}{5}\cdot\frac{25}{18}=\frac{12}{5}\cdot\frac{25}{18}=\frac{300}{90}=\frac{10}{3}\)
b) \(\frac{9}{11}:2\frac{5}{2}\cdot2\frac{3}{4}=\frac{9}{11}.\frac{2}{9}\cdot\frac{11}{4}=\frac{1}{2}\)
c) \(10:\frac{35}{24}:\frac{36}{7}=10\cdot\frac{24}{35}\cdot\frac{7}{36}=\frac{4}{3}\)
d) \(10,77\cdot9,8+5,23\cdot9,8=9,8\cdot\left(10,77+5,23\right)=9,8\cdot16=156,8\)
e) \(1,26\cdot3,6:0,28-6,2=16,2-6,2=10\)
\(2\frac{2}{5}\) x \(\frac{25}{18}\) = \(\frac{12}{5}x\frac{25}{18}=\frac{10}{3}\) x = nhân
\(\frac{9}{11}:2\frac{5}{2}x2\frac{3}{4}\) = \(\frac{9}{11}:\frac{9}{2}x\frac{11}{4}=\frac{2}{11}x\frac{11}{4}=\frac{1}{2}\)
\(10:\frac{35}{24}:\frac{36}{7}=\frac{48}{7}:\frac{36}{7}=\frac{4}{3}\)
\(10,77x9,8+5,23x9,8=\left(10,77+5,23\right)x9,8=156,8\)
\(1,26x3,6:0,28-6,2=4,536:0,28-6,2=16,2-6,2=10\)
a) 5/9 x 12/25 = 4/15
b) 12/11 : 36/55 = 5/3
c) 9/55 x 22 = 18/5
d) 144/7 : 36 = 4/7
a) 5/9 x 12/25 = 4/15
b) 12/11 : 36/55 = 5/3
c) 9/55 x 22 = 18/5
d) 144/7 : 36 = 4/7