Пошаговое объяснение:
1)x:11 3/7=1 1/20
x = 1 1/20 * 11 3/7
x = 21/20 * 80/7
x = 12
2)x:7 5/9=27/34
x = 27/34 * 7 5/9
x = 27/34 * 68/9
x = 6
3)x:4 3/4=2 3/19
x = 2 3/19 * 4 3/4
x = 41/19 * 19/4
x = 41/4
x = 10 1/4
4)9 2/7:x=1 6/7
x = 9 2/7 : 1 6/7
x = 65/7 : 13/7
x = 65/7 * 7/13
x = 5
5)10 2/13:x=1 7/26
x = 10 2/13 : 1 7/26
x = 132/13 : 33/26
x = 132/13 * 26/33
x = 8
6)12 1/7:x=2 3/7
x = 12 1/7 : 2 3/7
x = 85/7 : 17/7
x = 85/7 * 7/17
Пошаговое объяснение:
1)x:11 3/7=1 1/20
x = 1 1/20 * 11 3/7
x = 21/20 * 80/7
x = 12
2)x:7 5/9=27/34
x = 27/34 * 7 5/9
x = 27/34 * 68/9
x = 6
3)x:4 3/4=2 3/19
x = 2 3/19 * 4 3/4
x = 41/19 * 19/4
x = 41/4
x = 10 1/4
4)9 2/7:x=1 6/7
x = 9 2/7 : 1 6/7
x = 65/7 : 13/7
x = 65/7 * 7/13
x = 5
5)10 2/13:x=1 7/26
x = 10 2/13 : 1 7/26
x = 132/13 : 33/26
x = 132/13 * 26/33
x = 8
6)12 1/7:x=2 3/7
x = 12 1/7 : 2 3/7
x = 85/7 : 17/7
x = 85/7 * 7/17
x = 5