3/4:(5/6+1/4) = 3/4÷(20/24+6/24) = 3/4÷26/24 = 3/4 × 24/26 = 72/104 = 36/52 = 18/26 = 9/13
ответ: 9/13.
3/4:(5/6+1/4) = 3/4÷(20/24+6/24) = 3/4÷26/24 = 3/4 × 24/26 = 72/104 = 36/52 = 18/26 = 9/13
ответ: 9/13.