Пошаговое объяснение:
[tex] 1)\frac{3}{8} \times - 4 = - \frac{12}{8} = - \frac{3 \times 4}{2 \times 4} = - 1 \frac{1}{2} [/tex]
[tex]2) - 1 \frac{1}{2} + 5 = \frac{7}{2} = 3 \frac{1}{2} [/tex]
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Пошаговое объяснение:
[tex] 1)\frac{3}{8} \times - 4 = - \frac{12}{8} = - \frac{3 \times 4}{2 \times 4} = - 1 \frac{1}{2} [/tex]
[tex]2) - 1 \frac{1}{2} + 5 = \frac{7}{2} = 3 \frac{1}{2} [/tex]