a, 1\(\frac{1}{2}\)* 1\(\frac{1}{3}\)* 1\(\frac{1}{4}\) b, 1\(\frac{1}{2}\) : 1\(\frac{1}{3}\): 1\(\frac{1}{4}\) =.................................
=................................... =.................................
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a , \(1\frac{1}{2}\times1\frac{1}{3}\times1\frac{1}{4}\)
\(\Rightarrow\frac{3}{2}\times\frac{4}{3}\times\frac{5}{4}\)
= \(\frac{5}{2}\)
b , \(1\frac{1}{2}:1\frac{1}{3}:1\frac{1}{4}\)
\(=\frac{3}{2}:\frac{4}{3}:\frac{5}{4}\)
=\(\frac{9}{10}\)
\(1\frac{1}{2}\cdot1\frac{1}{3}\cdot1\frac{1}{4}\)
\(=\frac{3}{2}\cdot\frac{4}{3}\cdot\frac{5}{4}\)
\(=\frac{5}{2}\)
\(1\frac{1}{2}:1\frac{1}{3}:1\frac{1}{4}\)
\(=\frac{3}{2}:\frac{4}{3}:\frac{5}{4}\)
\(=\frac{3}{2}\cdot\frac{3}{4}\cdot\frac{4}{5}\)
\(=\frac{9}{10}\)