Найдите значение выражения: (1 − ¹/₅) × (1 − ¹/₆) × (1 − ¹/₇)

  1. ⁴/₇
  2. ⁷/₅
  3. ⁷/₆
  4. ⁴/₅

📝 Detailed explanation

Вычислим разности в скобках: ⁴/₅ × ⁵/₆ × ⁶/₇. При умножении дробей числа 5 и 6 сокращаются, и остается ⁴/₇.
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Question 4 of 10
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