реши уравнение дроби

1) 3 2/45 х+1 7/30 х=6 1/9

2) (8 2/5/x+3 5/9) / 4 1/6=1 1/3

3 2/45 х+1 7/30 х=6 1/9

(3*45+2) / 45x + (1*30+7) / 30x = (6*9+1) / 9

137x/45+37x/30=55/9 |*90

274x+111x=550

385x=550

x=550/385=110/77=10/7

(8 2/5/x+3 5/9) / 4 1/6=1 1/3

(42 / (5x) + 32/9) / (25/6) = 4/3

42 / (5x) + 32/9=4/3*25/6

42 / (5x) = 50/9-32/9

42 / (5x) = 2

5x=42/2=21

x=21/5=4.2