A) (2/3) : 5 = 2/3 * 1/5 = 2/15
Б) (3/7) : 21 = 3/7 * 1/21 = 1/49
В) (2/9) : 9 = 2/9 * 1/9 = 2/81
Г) (3/8) : 24 = 3/8 * 1/24 = 1/64
A) (2/3) : 5 = 2/3 * 1/5 = 2/15
Б) (3/7) : 21 = 3/7 * 1/21 = 1/49
В) (2/9) : 9 = 2/9 * 1/9 = 2/81
Г) (3/8) : 24 = 3/8 * 1/24 = 1/64