(²/₃ × ⁴/₅) × (³/₄ × ⁵/₆) × (⁶/₇ × ⁸/₉) × (⁷/₈ × ⁹/₁₀) = ¹/₂
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²/₃ × ⁴/₅ × ³/₄ × ⁵/₆ × ⁶/₇ × ⁸/₉ × ⁷/₈ × ⁹/₁₀ = ¹/₂
²/₃ × ³/₄ = ²ˣ³/₃ₓ₄ = ²/₄ = ¹/₂
¹/₂ × ⁴/₅ = ¹ˣ⁴/₂ₓ₅ = ²/₅
⁵/₆ × ⁶/₇ = ⁵ˣ⁶/₆ₓ₇ = ⁵/₇
⁵/₇× ⁷/₈ = ⁵ˣ⁷/₇ₓ₈ = ⁵/₈
⁵/₈ × ⁸/₉ = ⁵ˣ⁸/₈ₓ₉ = ⁵/₉
⁵/₉ × ⁹/₁₀ = ⁵ˣ⁹/₉ₓ₁₀ = ⁵/₁₀ = ¹/₂