2) -40/63+(-35/72); 4) -19/60+(-11/24); 6) -23/36+(-31/48); Помогите пожалуйста срочно умоляю
2) -40/63 + (-35/72) = -40/63 - 35/72 = -320/504 - 245/504 = = - 565/504 = - 1 61/504, 3) -19/60 + (-11/24) = -19/60 - 11/24 = -38/120 - 55/120 = -93/120 = - 31/40, 4) -23/36 + (-31/48) = -23/36 - 31/48 = -92/144 - 93/144 = = - 185/144 = - 1 41/144
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2) 4) 6)