[tex] 1.\frac{4}{5} \times 0.820 \\ = 4 \times 0.164 \\ = 0.656[/tex]
[tex]2. \frac{3}{8} + 0.13 \\ = \frac{3 + 1.04}{8} \\ = \frac{4.04}{8} \\ = 0.505[/tex]
[tex]3. \frac{7}{9} \times 0.230 \\ =0.178 \: (approximately)[/tex]
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