2:вычслите
1)(3,65-2 3/4):3+17/40*12=
2)(9/4+1 17/20):1 7/8+24*3/8=
помогите!!!!!!!!!!!!!!!!!
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2:вычслите
1)(3,65-2 3/4):3+17/40*12=
2)(9/4+1 17/20):1 7/8+24*3/8=
помогите!!!!!!!!!!!!!!!!!
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Answers & Comments
3,65-2 3/4):3+17/40*12= (3,65- ¹¹/₄ ):3+ 5.1= (⁷³/₂₀ - ¹¹/₄) :3 + 5.1 = (⁷³/₂₀ - ⁵⁵/₂₀) :3 + 5.1= ¹⁸/₂₀ : 3 + 5.1 = 0.3 + 5.1= 5.4
(9/4+1 17/20):1 7/8+24*3/8= (⁹/₄ + ³⁷/₂₀) : ¹⁵/₈ + 24 * ³/₈ = (⁴⁵/₂₀+ ³⁷/₂₀) * ⁸/₁₅ + 9 = ⁸²/₂₀ * ⁸/₁₅ + 9= ⁸²*⁸/₂₀*₁₅ + 9= ¹⁶⁴/₇₅ + 9 = ¹⁶⁴/₇₅ + ⁶⁷⁵/₇₅ = ⁸³⁹/₇₅= 11 ¹⁴/₇₅.