Question

(-3 целых 9/25)*1 целую 17/63+1 целую 19/45*1 целую 3/32=
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Answer 1

(-3⁹/₂₅)×1¹⁷/₆₃+1¹⁹/₄₅×1³/₃₂ = - 3¹³/₁₅
(-⁸⁴/₂₅)×⁸⁰/₆₃ = - ⁸⁴ˣ⁸⁰/₂₅ₓ₆₃ = - ¹⁴ˣ¹⁶/₅ₓ₉ = - ²²⁴/₄₅ = - 4⁴⁴/₄₅
1¹⁹/₄₅×1³/₃₂ =⁶⁴/₄₅׳⁵/₃₂ = ⁶⁴ˣ³⁵/₄₅ₓ₃₂ = ²ˣ⁵/₉ = ¹⁰/₉
-4⁴⁴/₄₅ + ¹⁰/₉ = -4⁴⁴/₄₅ + ¹⁰ˣ⁵/₄₅ = -3⁸⁹/₄₅ + ⁵⁰/₄₅ = - 3⁸⁹⁻⁵⁰/₄₅ = -3³⁹/₄₅ = -3¹³/₁₅