[15 - 9⅓ : (-7)] * (-1½) - 3⅕ = ??
Prawidłowy wynik (-27,7)
[15 - 9⅓ : (-7)] * (-1½) - 3⅕ =
[15 - ²⁸/₃ *(-¹/₇)] *(-³/₂) - ¹⁶/₅ =
[15 + ⁴/₃] *(-³/₂) - ¹⁶/₅ =
[⁴⁹/₃] *(-³/₂) - ¹⁶/₅=
-⁴⁹/₂ - ¹⁶/₅ =
-²⁴⁵/10 - ³²/₁₀ =
-²⁷⁷/₁₀ =
-27,7
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[15 - 9⅓ : (-7)] * (-1½) - 3⅕ =
[15 - ²⁸/₃ *(-¹/₇)] *(-³/₂) - ¹⁶/₅ =
[15 + ⁴/₃] *(-³/₂) - ¹⁶/₅ =
[⁴⁹/₃] *(-³/₂) - ¹⁶/₅=
-⁴⁹/₂ - ¹⁶/₅ =
-²⁴⁵/10 - ³²/₁₀ =
-²⁷⁷/₁₀ =
-27,7