= 29/4 : (-29/10) + 86/21 : (-74/21) = -29/4 * 10/29 - 86/21 * 21/74 = -1/2 * 5 - 43 * 1/37 = -5/2 - 43/37 = -5/2 - 43/37 = -271/ 74 ; -3 49/74; -3,66
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= 29/4 : (-29/10) + 86/21 : (-74/21) = -29/4 * 10/29 - 86/21 * 21/74 = -1/2 * 5 - 43 * 1/37 = -5/2 - 43/37 = -5/2 - 43/37 = -271/ 74 ; -3 49/74; -3,66