а) 1:2/5 = 1 / (2/5) = 1 * (5/2) = 5/2 = 2.5
б) 1:1/2 = 1 / (1/2) = 1 * (2/1) = 2
в) 1:2/9 = 1 / (2/9) = 1 * (9/2) = 9/2 = 4.5
г) 20:15 = 20 / 15 = 4/3 = 1.33
д) 7:8 = 7 / 8 = 0.875
е) 25:75 = 25 / 75 = 1/3 = 0.33
а) 1:2/5 = 1 / (2/5) = 1 * (5/2) = 5/2 = 2.5
б) 1:1/2 = 1 / (1/2) = 1 * (2/1) = 2
в) 1:2/9 = 1 / (2/9) = 1 * (9/2) = 9/2 = 4.5
г) 20:15 = 20 / 15 = 4/3 = 1.33
д) 7:8 = 7 / 8 = 0.875
е) 25:75 = 25 / 75 = 1/3 = 0.33