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Ответ:

[tex] 1)\frac{4.2 \times 0.5}{1.5 \times 0.7} = \frac{6 \times 1}{3 \times 1} = \frac{6}{3} = 2[/tex]

[tex]2) \frac{2.4 \times 0.9}{4.5 \times 0.8} = \frac{3 \times 1}{5 \times 1} = \frac{3}{5} [/tex]

[tex]3) \frac{2.7 \times 4.3}{8.6 \times 0.3} = \frac{9 \times 1}{2 \times 1} = \frac{9}{2} = 4 \frac{1}{2} [/tex]

[tex]4) \frac{6.4 \times 0.7}{1.6 \times 5.6} = \frac{8 \times 0.7}{1.6 \times 7} = \frac{5.6}{11.2} = \frac{1}{2} [/tex]

[tex]5) \frac{1.5 \times 7.2}{1.8 \times 7.5} = \frac{1 \times 4}{1 \times 5} = \frac{4}{5} [/tex]

[tex]6) \frac{1.3 \times 6.4}{0.8 \times 6.5} = \frac{1 \times 8}{1 \times 5} = \frac{8}{5} = 1 \frac{3}{5} [/tex]