а) 2/5 * m
m = 1/2
2/5 * 1/2 = 1/5 = 0,2
m = 2/5
2/5 * 2/5 = 4/25 = 0,16
m = 2 1/2
2/5 * 2 1/2 = 2/5 * 5/2 = 1
m = 1 7/8
2/5 * 1 7/8 = 2/5 * 15/8 = 3/4 = 0,75
m = 15/16
2/5 * 15/16 = 3/8 = 0,375
б) 4/9 * x
x = 1/4
4/9 * 1/4 = 1/9
x = 4/9
4/9 * 4/9 = 16/81
x = 4 1/2
4/9 * 4 1/2 = 4/9 * 9/2 = 2
а) 2/5 * m
m = 1/2
2/5 * 1/2 = 1/5 = 0,2
m = 2/5
2/5 * 2/5 = 4/25 = 0,16
m = 2 1/2
2/5 * 2 1/2 = 2/5 * 5/2 = 1
m = 1 7/8
2/5 * 1 7/8 = 2/5 * 15/8 = 3/4 = 0,75
m = 15/16
2/5 * 15/16 = 3/8 = 0,375
б) 4/9 * x
x = 1/4
4/9 * 1/4 = 1/9
x = 4/9
4/9 * 4/9 = 16/81
x = 4 1/2
4/9 * 4 1/2 = 4/9 * 9/2 = 2