Решите уравнение 1 7/8 : 8 1/3 = x : 4/9
1 7/8:8 1/3=х:4/9 1 7/8=15/8 8 1/3=25/3 15/8:25/3=х:4/9 25/3·х=15/8·4/9 25/3·х=5/6 х=5/6:25/3 х=5/6·3/25 х=1/10