Решите уравнение 1)2/9x=5/12. 3)3/5x=6. 5)3/7x=одна целая 4/5

1) 2/9х = 5/12
 х = 5/12 /2/9
 х = 15/8 = 1 7/8
2) 3/5х = 6
 х = 6 / 3/5
 х = 10
3) 3/7х = 1 4/5
    3/7х = 9/5
     х = 9/5 / 3/7
     х = 21/5 = 4 1/5