Решите уравнение с дробями (7 класс)

1) х/4+х/3=7

2) 2 х/5+х/2=9

3) 5 х/4-х/2=3

4) 4 х/5-х/10=7

5) 3 х/4+5 х/6=38

1 x/4+x/3 = 7

3x/12 + 4x/12 = 7

7x/12 = 7

x/12 = 1

x = 12

2 2x/5 + x/2 = 9

4x/10 + 5x/10 = 9

9x/10 = 9

x/10 = 1

x = 10

3 5x/4 - x/2 = 3

5x/4 - 2x/4 = 3

3x/4 = 3

X/4 = 1

X = 4

4 4x/5 - x/10 = 7

8x/10 - x/10 = 7

7x/10 = 7

X/10 = 1

X = 10

5 3x/4 + 5x/6 = 38

9x/12 + 10x/12 = 38

19x/12 = 38

X/12 = 2

X = 12*2

X=24