Question

3 целых 1/3x разделить 1,5 =4 целых 2/7÷3/14

Answer 1

10x/3:3/2= 30/7:3/14
10x/3*2/3= 30/7*14/3
20x/9= 20
x/9=1
x=9

Answer 2

3 1/3х : 1,5 = 4 2/7 : 3/14
10/3х : 1,5 = 30/7 * 14/3
10/3х : 1,5 = 20
10/3х = 20 * 1,5
10/3х = 30
х = 30 : 10/3
х = 30 * 3/10
х = 3 * 3
х = 9

2 способ
10/3х : 15/10 = 30/7 : 3/14 - это пропорция
10/3х * 3/14 = 15/10 * 30/7 - свойство пропорции
10/14х = 45/7
х = 45/7 : 10/14
х = 45/7 * 14/10
х = 18/2
х = 9