Tính rồi viết chữ thích hợp vào ô trống để giải ô chữ. \(\frac{1}{2}\,\, \times \,\,\frac{4}{{13}}\,\, = \,\,.....\) (Ơ)
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Tính rồi viết chữ thích hợp vào ô trống để giải ô chữ.
\(\frac{1}{2}\,\, \times \,\,\frac{4}{{13}}\,\, = \,\,.....\) (Ơ) | \(4\,\, - \,\,\frac{8}{3}\,\, = \,\,.....\) (Ầ) | \(\frac{{16}}{{21}}\,\, \times \,\,\left( {\frac{5}{8}\,\, + \,\,\frac{1}{4}} \right)\,\, = \,\,.....\) (N) |
\(\frac{3}{2}\,\,:\,\,\frac{6}{5}\,\, = \,\,.....\) (M) | \(\frac{1}{8}\,\, + \,\,\frac{1}{4}\,\, = \,\,.....\) (S)
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\[\frac{1}{2}\,\, \times \,\,\frac{4}{{13}}\,\, = \frac{{\cancel{2} \times 2}}{{\cancel{2} \times 13}} = \frac{2}{{13}}\] (Ơ) \(4\,\, - \,\,\frac{8}{3}\,\, = \,\frac{{12}}{3} - \frac{8}{3} = \frac{4}{3}\)(Ầ)
\(\frac{3}{2}\,\,:\,\,\frac{6}{5}\,\, = \,\,\frac{3}{2} \times \frac{5}{6} = \frac{{3 \times 5}}{{2 \times 2 \times 3}} = \frac{5}{4}\) (M) \(\frac{1}{8}\,\, + \,\,\frac{1}{4}\,\, = \,\,\frac{1}{8} + \frac{2}{8} = \frac{3}{8}\)(S)
\(\frac{{16}}{{21}}\,\, \times \,\,\left( {\frac{5}{8}\,\, + \,\,\frac{1}{4}} \right)\,\, = \,\,\frac{{16}}{{21}} \times \,\,\left( {\frac{5}{8}\,\, + \,\,\frac{2}{8}} \right) = \frac{{16}}{{21}} \times \frac{7}{8} = \frac{2}{3}\,\) (N)
