Tính 11 12 : 33 16 . 3 5
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\(\left(\frac{11}{12}:\frac{33}{16}\right).\frac{3}{5}\)
\(=\frac{11}{12}.\frac{16}{33}.\frac{3}{5}\)
\(=\frac{11.16.3}{12.33.5}\)
\(=\frac{11.4.4.3}{4.3.3.11.5}\)
\(=\frac{4}{15}\)
\(\left(\frac{11}{12}:\frac{33}{16}\right).\frac{3}{5}\)
\(\left(\frac{11}{12}.\frac{16}{33}\right).\frac{3}{5}\)
\(\frac{11}{12}.\frac{16}{33}.\frac{3}{5}=\frac{11.16.3}{12.33.5}=\frac{16}{4.3.5}=\frac{4}{3.5}=\frac{4}{15}\)
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~TMT_Nhók
a: \(=\dfrac{-2}{7}\cdot\dfrac{3}{2}=\dfrac{-3}{7}\)
b: \(=3\cdot\dfrac{7}{12}=\dfrac{7}{4}\)
c: \(=\dfrac{11}{12}\cdot\dfrac{16}{33}\cdot\dfrac{3}{5}=\dfrac{1}{3}\cdot\dfrac{4}{3}\cdot\dfrac{3}{5}=\dfrac{1}{3}\cdot\dfrac{4}{5}=\dfrac{4}{15}\)
a. -3/4 x 12/-5 x (-25/6)=-15/2
b. -2 x -38/21 x -7/4 x (-3/8)=-19/8
c. (11/12: 33/16) x 3/5=4/15
d. 7/23 x [(-8/6)- 45/18]=-7/6
1: \(\dfrac{4}{23}+\dfrac{5}{21}+\dfrac{1}{2}-\dfrac{4}{23}+\dfrac{16}{21}\)
\(=1+\dfrac{1}{2}\)
\(=\dfrac{3}{2}\)
2: \(\left(\dfrac{1}{3}+\dfrac{12}{67}+\dfrac{13}{41}\right)-\left(\dfrac{79}{67}-\dfrac{28}{41}\right)\)
\(=\dfrac{1}{3}+\dfrac{12}{67}+\dfrac{13}{41}-\dfrac{79}{67}+\dfrac{28}{41}\)
\(=\dfrac{1}{3}\)