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(7)/(-9)×(3)/(10)×(2)/(15)×-(25)/(42)

7−9×310×215×−2542 \frac{7}{-9} \times \frac{3}{10} \times \frac{2}{15} \times-\frac{25}{42}

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Full solution

Q. 7−9×310×215×−2542 \frac{7}{-9} \times \frac{3}{10} \times \frac{2}{15} \times-\frac{25}{42}
  1. Multiply Numerators: Multiply the numerators together: 7×3×2×−257 \times 3 \times 2 \times -25.\newlineCalculation: 7×3×2×−25=42×−50=−21007 \times 3 \times 2 \times -25 = 42 \times -50 = -2100.
  2. Multiply Denominators: Multiply the denominators together: −9×10×15×42-9 \times 10 \times 15 \times 42.\newlineCalculation: −9×10×15×42=−90×630=−56700-9 \times 10 \times 15 \times 42 = -90 \times 630 = -56700.
  3. Divide Results: Divide the result from the numerators by the result from the denominators: −2100/−56700-2100 / -56700. Calculation: −2100/−56700=1/27-2100 / -56700 = 1 / 27.

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